Home / 10,176.91-15,265.21-2,781.36

Finding the Fourth Proportional to 10,176.91, 15,265.21 and 2,781.36

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Solution

The fourth proportional to 10,176.91, 15,265.21 and 2,781.36 is: 4,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,176.91 : 15,265.21 = 2,781.36 : x
  2. Step 2: Convert to fraction form
    10,176.91/15,265.21 = 2,781.36/x
  3. Step 3: Cross multiply
    10,176.91x = 15,265.21 × 2,781.36
  4. Step 4: Simplify right side
    10,176.91x = 42,458,044.49
  5. Step 5: Solve for x
    x = 42,458,044.49/10,176.91
  6. Step 6: Final answer
    x = 4,172.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.