Home / 9,191.88-12,684.32-5,000.12

Finding the Fourth Proportional to 9,191.88, 12,684.32 and 5,000.12

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Solution

The fourth proportional to 9,191.88, 12,684.32 and 5,000.12 is: 6,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.88 : 12,684.32 = 5,000.12 : x
  2. Step 2: Convert to fraction form
    9,191.88/12,684.32 = 5,000.12/x
  3. Step 3: Cross multiply
    9,191.88x = 12,684.32 × 5,000.12
  4. Step 4: Simplify right side
    9,191.88x = 63,423,122.12
  5. Step 5: Solve for x
    x = 63,423,122.12/9,191.88
  6. Step 6: Final answer
    x = 6,899.91

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Double scale
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Similar ratio
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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.