Home / 8,909.12-12,294.60-4,930.22

Finding the Fourth Proportional to 8,909.12, 12,294.60 and 4,930.22

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Solution

The fourth proportional to 8,909.12, 12,294.60 and 4,930.22 is: 6,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.12 : 12,294.60 = 4,930.22 : x
  2. Step 2: Convert to fraction form
    8,909.12/12,294.60 = 4,930.22/x
  3. Step 3: Cross multiply
    8,909.12x = 12,294.60 × 4,930.22
  4. Step 4: Simplify right side
    8,909.12x = 60,615,082.81
  5. Step 5: Solve for x
    x = 60,615,082.81/8,909.12
  6. Step 6: Final answer
    x = 6,803.71

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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.