Home / 8,909.11-12,294.75-4,930.12

Finding the Fourth Proportional to 8,909.11, 12,294.75 and 4,930.12

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Solution

The fourth proportional to 8,909.11, 12,294.75 and 4,930.12 is: 6,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.11 : 12,294.75 = 4,930.12 : x
  2. Step 2: Convert to fraction form
    8,909.11/12,294.75 = 4,930.12/x
  3. Step 3: Cross multiply
    8,909.11x = 12,294.75 × 4,930.12
  4. Step 4: Simplify right side
    8,909.11x = 60,614,592.87
  5. Step 5: Solve for x
    x = 60,614,592.87/8,909.11
  6. Step 6: Final answer
    x = 6,803.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.