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Finding the Fourth Proportional to 8,737.04, 11,989.30 and 7,945.04

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Solution

The fourth proportional to 8,737.04, 11,989.30 and 7,945.04 is: 10,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.04 : 11,989.30 = 7,945.04 : x
  2. Step 2: Convert to fraction form
    8,737.04/11,989.30 = 7,945.04/x
  3. Step 3: Cross multiply
    8,737.04x = 11,989.30 × 7,945.04
  4. Step 4: Simplify right side
    8,737.04x = 95,255,468.07
  5. Step 5: Solve for x
    x = 95,255,468.07/8,737.04
  6. Step 6: Final answer
    x = 10,902.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.