Home / 11,432.92-15,778.12-6,718.72

Finding the Fourth Proportional to 11,432.92, 15,778.12 and 6,718.72

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Solution

The fourth proportional to 11,432.92, 15,778.12 and 6,718.72 is: 9,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.92 : 15,778.12 = 6,718.72 : x
  2. Step 2: Convert to fraction form
    11,432.92/15,778.12 = 6,718.72/x
  3. Step 3: Cross multiply
    11,432.92x = 15,778.12 × 6,718.72
  4. Step 4: Simplify right side
    11,432.92x = 106,008,770.41
  5. Step 5: Solve for x
    x = 106,008,770.41/11,432.92
  6. Step 6: Final answer
    x = 9,272.24

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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.