Home / 12,545.27-17,312.84-7,240.38

Finding the Fourth Proportional to 12,545.27, 17,312.84 and 7,240.38

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Solution

The fourth proportional to 12,545.27, 17,312.84 and 7,240.38 is: 9,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.27 : 17,312.84 = 7,240.38 : x
  2. Step 2: Convert to fraction form
    12,545.27/17,312.84 = 7,240.38/x
  3. Step 3: Cross multiply
    12,545.27x = 17,312.84 × 7,240.38
  4. Step 4: Simplify right side
    12,545.27x = 125,351,540.48
  5. Step 5: Solve for x
    x = 125,351,540.48/12,545.27
  6. Step 6: Final answer
    x = 9,991.94

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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.