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Finding the Fourth Proportional to 8,737.68, 13,039.42 and 7,803.48

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Solution

The fourth proportional to 8,737.68, 13,039.42 and 7,803.48 is: 11,645.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.68 : 13,039.42 = 7,803.48 : x
  2. Step 2: Convert to fraction form
    8,737.68/13,039.42 = 7,803.48/x
  3. Step 3: Cross multiply
    8,737.68x = 13,039.42 × 7,803.48
  4. Step 4: Simplify right side
    8,737.68x = 101,752,853.18
  5. Step 5: Solve for x
    x = 101,752,853.18/8,737.68
  6. Step 6: Final answer
    x = 11,645.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.