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Finding the Fourth Proportional to 8,047.76, 12,017.14 and 6,385.64

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Solution

The fourth proportional to 8,047.76, 12,017.14 and 6,385.64 is: 9,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.76 : 12,017.14 = 6,385.64 : x
  2. Step 2: Convert to fraction form
    8,047.76/12,017.14 = 6,385.64/x
  3. Step 3: Cross multiply
    8,047.76x = 12,017.14 × 6,385.64
  4. Step 4: Simplify right side
    8,047.76x = 76,737,129.87
  5. Step 5: Solve for x
    x = 76,737,129.87/8,047.76
  6. Step 6: Final answer
    x = 9,535.22

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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.