Home / 9,366.18-12,909.92-6,641.61

Finding the Fourth Proportional to 9,366.18, 12,909.92 and 6,641.61

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Solution

The fourth proportional to 9,366.18, 12,909.92 and 6,641.61 is: 9,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.18 : 12,909.92 = 6,641.61 : x
  2. Step 2: Convert to fraction form
    9,366.18/12,909.92 = 6,641.61/x
  3. Step 3: Cross multiply
    9,366.18x = 12,909.92 × 6,641.61
  4. Step 4: Simplify right side
    9,366.18x = 85,742,620.56
  5. Step 5: Solve for x
    x = 85,742,620.56/9,366.18
  6. Step 6: Final answer
    x = 9,154.49

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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.