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Finding the Fourth Proportional to 8,737.54, 11,989.99 and 7,945.54

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Solution

The fourth proportional to 8,737.54, 11,989.99 and 7,945.54 is: 10,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.54 : 11,989.99 = 7,945.54 : x
  2. Step 2: Convert to fraction form
    8,737.54/11,989.99 = 7,945.54/x
  3. Step 3: Cross multiply
    8,737.54x = 11,989.99 × 7,945.54
  4. Step 4: Simplify right side
    8,737.54x = 95,266,945.14
  5. Step 5: Solve for x
    x = 95,266,945.14/8,737.54
  6. Step 6: Final answer
    x = 10,903.18

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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.