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Finding the Fourth Proportional to 6,757.20, 10,135.80 and 6,692.40

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Solution

The fourth proportional to 6,757.20, 10,135.80 and 6,692.40 is: 10,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.20 : 10,135.80 = 6,692.40 : x
  2. Step 2: Convert to fraction form
    6,757.20/10,135.80 = 6,692.40/x
  3. Step 3: Cross multiply
    6,757.20x = 10,135.80 × 6,692.40
  4. Step 4: Simplify right side
    6,757.20x = 67,832,827.92
  5. Step 5: Solve for x
    x = 67,832,827.92/6,757.20
  6. Step 6: Final answer
    x = 10,038.60

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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.