Home / 8,909.62-12,293.89-5,132.95

Finding the Fourth Proportional to 8,909.62, 12,293.89 and 5,132.95

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Solution

The fourth proportional to 8,909.62, 12,293.89 and 5,132.95 is: 7,082.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.62 : 12,293.89 = 5,132.95 : x
  2. Step 2: Convert to fraction form
    8,909.62/12,293.89 = 5,132.95/x
  3. Step 3: Cross multiply
    8,909.62x = 12,293.89 × 5,132.95
  4. Step 4: Simplify right side
    8,909.62x = 63,103,879.11
  5. Step 5: Solve for x
    x = 63,103,879.11/8,909.62
  6. Step 6: Final answer
    x = 7,082.67

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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.