Home / 17,691.20-26,549.60-7,310.40

Finding the Fourth Proportional to 17,691.20, 26,549.60 and 7,310.40

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Solution

The fourth proportional to 17,691.20, 26,549.60 and 7,310.40 is: 10,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691.20 : 26,549.60 = 7,310.40 : x
  2. Step 2: Convert to fraction form
    17,691.20/26,549.60 = 7,310.40/x
  3. Step 3: Cross multiply
    17,691.20x = 26,549.60 × 7,310.40
  4. Step 4: Simplify right side
    17,691.20x = 194,088,195.84
  5. Step 5: Solve for x
    x = 194,088,195.84/17,691.20
  6. Step 6: Final answer
    x = 10,970.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.