Home / 10,169.28-15,307.92-8,665.92

Finding the Fourth Proportional to 10,169.28, 15,307.92 and 8,665.92

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Solution

The fourth proportional to 10,169.28, 15,307.92 and 8,665.92 is: 13,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,169.28 : 15,307.92 = 8,665.92 : x
  2. Step 2: Convert to fraction form
    10,169.28/15,307.92 = 8,665.92/x
  3. Step 3: Cross multiply
    10,169.28x = 15,307.92 × 8,665.92
  4. Step 4: Simplify right side
    10,169.28x = 132,657,210.09
  5. Step 5: Solve for x
    x = 132,657,210.09/10,169.28
  6. Step 6: Final answer
    x = 13,044.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.