Home / 11,193.12-15,447.12-6,478.92

Finding the Fourth Proportional to 11,193.12, 15,447.12 and 6,478.92

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Solution

The fourth proportional to 11,193.12, 15,447.12 and 6,478.92 is: 8,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,193.12 : 15,447.12 = 6,478.92 : x
  2. Step 2: Convert to fraction form
    11,193.12/15,447.12 = 6,478.92/x
  3. Step 3: Cross multiply
    11,193.12x = 15,447.12 × 6,478.92
  4. Step 4: Simplify right side
    11,193.12x = 100,080,654.71
  5. Step 5: Solve for x
    x = 100,080,654.71/11,193.12
  6. Step 6: Final answer
    x = 8,941.27

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Double scale
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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.