Home / 7,572.30-11,358.45-4,947.90

Finding the Fourth Proportional to 7,572.30, 11,358.45 and 4,947.90

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Solution

The fourth proportional to 7,572.30, 11,358.45 and 4,947.90 is: 7,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.30 : 11,358.45 = 4,947.90 : x
  2. Step 2: Convert to fraction form
    7,572.30/11,358.45 = 4,947.90/x
  3. Step 3: Cross multiply
    7,572.30x = 11,358.45 × 4,947.90
  4. Step 4: Simplify right side
    7,572.30x = 56,200,474.76
  5. Step 5: Solve for x
    x = 56,200,474.76/7,572.30
  6. Step 6: Final answer
    x = 7,421.85

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Similar ratio
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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.