Home / 9,123.08-12,591.12-6,771.92

Finding the Fourth Proportional to 9,123.08, 12,591.12 and 6,771.92

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Solution

The fourth proportional to 9,123.08, 12,591.12 and 6,771.92 is: 9,346.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.08 : 12,591.12 = 6,771.92 : x
  2. Step 2: Convert to fraction form
    9,123.08/12,591.12 = 6,771.92/x
  3. Step 3: Cross multiply
    9,123.08x = 12,591.12 × 6,771.92
  4. Step 4: Simplify right side
    9,123.08x = 85,266,057.35
  5. Step 5: Solve for x
    x = 85,266,057.35/9,123.08
  6. Step 6: Final answer
    x = 9,346.19

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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.