Home / 12,545.02-17,312.49-7,240.13

Finding the Fourth Proportional to 12,545.02, 17,312.49 and 7,240.13

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Solution

The fourth proportional to 12,545.02, 17,312.49 and 7,240.13 is: 9,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.02 : 17,312.49 = 7,240.13 : x
  2. Step 2: Convert to fraction form
    12,545.02/17,312.49 = 7,240.13/x
  3. Step 3: Cross multiply
    12,545.02x = 17,312.49 × 7,240.13
  4. Step 4: Simplify right side
    12,545.02x = 125,344,591.66
  5. Step 5: Solve for x
    x = 125,344,591.66/12,545.02
  6. Step 6: Final answer
    x = 9,991.58

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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.