Home / 12,417.97-17,136.87-6,752.78

Finding the Fourth Proportional to 12,417.97, 17,136.87 and 6,752.78

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Solution

The fourth proportional to 12,417.97, 17,136.87 and 6,752.78 is: 9,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.97 : 17,136.87 = 6,752.78 : x
  2. Step 2: Convert to fraction form
    12,417.97/17,136.87 = 6,752.78/x
  3. Step 3: Cross multiply
    12,417.97x = 17,136.87 × 6,752.78
  4. Step 4: Simplify right side
    12,417.97x = 115,721,513.00
  5. Step 5: Solve for x
    x = 115,721,513.00/12,417.97
  6. Step 6: Final answer
    x = 9,318.88

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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.