Home / 14,139.14-19,512.69-8,171.60

Finding the Fourth Proportional to 14,139.14, 19,512.69 and 8,171.60

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Solution

The fourth proportional to 14,139.14, 19,512.69 and 8,171.60 is: 11,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.14 : 19,512.69 = 8,171.60 : x
  2. Step 2: Convert to fraction form
    14,139.14/19,512.69 = 8,171.60/x
  3. Step 3: Cross multiply
    14,139.14x = 19,512.69 × 8,171.60
  4. Step 4: Simplify right side
    14,139.14x = 159,449,897.60
  5. Step 5: Solve for x
    x = 159,449,897.60/14,139.14
  6. Step 6: Final answer
    x = 11,277.20

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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.