Home / 14,204.78-19,601.76-8,153.63

Finding the Fourth Proportional to 14,204.78, 19,601.76 and 8,153.63

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Solution

The fourth proportional to 14,204.78, 19,601.76 and 8,153.63 is: 11,251.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,204.78 : 19,601.76 = 8,153.63 : x
  2. Step 2: Convert to fraction form
    14,204.78/19,601.76 = 8,153.63/x
  3. Step 3: Cross multiply
    14,204.78x = 19,601.76 × 8,153.63
  4. Step 4: Simplify right side
    14,204.78x = 159,825,400.38
  5. Step 5: Solve for x
    x = 159,825,400.38/14,204.78
  6. Step 6: Final answer
    x = 11,251.52

Related Problems

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Half scale
Find fourth proportional to 28,409.57, 39,203.52 and 16,307.25
Double scale
Find fourth proportional to 14,205.78, 19,603.14 and 8,154.63
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.