Home / 11,342.30-17,013.68-4,129.20

Finding the Fourth Proportional to 11,342.30, 17,013.68 and 4,129.20

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Solution

The fourth proportional to 11,342.30, 17,013.68 and 4,129.20 is: 6,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.30 : 17,013.68 = 4,129.20 : x
  2. Step 2: Convert to fraction form
    11,342.30/17,013.68 = 4,129.20/x
  3. Step 3: Cross multiply
    11,342.30x = 17,013.68 × 4,129.20
  4. Step 4: Simplify right side
    11,342.30x = 70,252,882.29
  5. Step 5: Solve for x
    x = 70,252,882.29/11,342.30
  6. Step 6: Final answer
    x = 6,193.89

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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.