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Finding the Fourth Proportional to 6,337.80, 9,512.79 and 5,414.40

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Solution

The fourth proportional to 6,337.80, 9,512.79 and 5,414.40 is: 8,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,337.80 : 9,512.79 = 5,414.40 : x
  2. Step 2: Convert to fraction form
    6,337.80/9,512.79 = 5,414.40/x
  3. Step 3: Cross multiply
    6,337.80x = 9,512.79 × 5,414.40
  4. Step 4: Simplify right side
    6,337.80x = 51,506,050.18
  5. Step 5: Solve for x
    x = 51,506,050.18/6,337.80
  6. Step 6: Final answer
    x = 8,126.80

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1.5x scale

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.