Home / 8,715.20-13,079.38-4,038.49

Finding the Fourth Proportional to 8,715.20, 13,079.38 and 4,038.49

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Solution

The fourth proportional to 8,715.20, 13,079.38 and 4,038.49 is: 6,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.20 : 13,079.38 = 4,038.49 : x
  2. Step 2: Convert to fraction form
    8,715.20/13,079.38 = 4,038.49/x
  3. Step 3: Cross multiply
    8,715.20x = 13,079.38 × 4,038.49
  4. Step 4: Simplify right side
    8,715.20x = 52,820,945.34
  5. Step 5: Solve for x
    x = 52,820,945.34/8,715.20
  6. Step 6: Final answer
    x = 6,060.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.