Home / 9,176.32-12,630.72-6,781.76

Finding the Fourth Proportional to 9,176.32, 12,630.72 and 6,781.76

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Solution

The fourth proportional to 9,176.32, 12,630.72 and 6,781.76 is: 9,334.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.32 : 12,630.72 = 6,781.76 : x
  2. Step 2: Convert to fraction form
    9,176.32/12,630.72 = 6,781.76/x
  3. Step 3: Cross multiply
    9,176.32x = 12,630.72 × 6,781.76
  4. Step 4: Simplify right side
    9,176.32x = 85,658,511.67
  5. Step 5: Solve for x
    x = 85,658,511.67/9,176.32
  6. Step 6: Final answer
    x = 9,334.73

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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.