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Finding the Fourth Proportional to 6,934.40, 10,401.60 and 6,372.80

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Solution

The fourth proportional to 6,934.40, 10,401.60 and 6,372.80 is: 9,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,934.40 : 10,401.60 = 6,372.80 : x
  2. Step 2: Convert to fraction form
    6,934.40/10,401.60 = 6,372.80/x
  3. Step 3: Cross multiply
    6,934.40x = 10,401.60 × 6,372.80
  4. Step 4: Simplify right side
    6,934.40x = 66,287,316.48
  5. Step 5: Solve for x
    x = 66,287,316.48/6,934.40
  6. Step 6: Final answer
    x = 9,559.20

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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.