Home / 13,344.07-18,417.36-8,798.76

Finding the Fourth Proportional to 13,344.07, 18,417.36 and 8,798.76

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Solution

The fourth proportional to 13,344.07, 18,417.36 and 8,798.76 is: 12,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.07 : 18,417.36 = 8,798.76 : x
  2. Step 2: Convert to fraction form
    13,344.07/18,417.36 = 8,798.76/x
  3. Step 3: Cross multiply
    13,344.07x = 18,417.36 × 8,798.76
  4. Step 4: Simplify right side
    13,344.07x = 162,049,930.47
  5. Step 5: Solve for x
    x = 162,049,930.47/13,344.07
  6. Step 6: Final answer
    x = 12,143.97

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Half scale
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Double scale
Find fourth proportional to 13,345.07, 18,418.74 and 8,799.76
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.