Home / 11,659.20-17,488.80-11,148.90

Finding the Fourth Proportional to 11,659.20, 17,488.80 and 11,148.90

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Solution

The fourth proportional to 11,659.20, 17,488.80 and 11,148.90 is: 16,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.20 : 17,488.80 = 11,148.90 : x
  2. Step 2: Convert to fraction form
    11,659.20/17,488.80 = 11,148.90/x
  3. Step 3: Cross multiply
    11,659.20x = 17,488.80 × 11,148.90
  4. Step 4: Simplify right side
    11,659.20x = 194,980,882.32
  5. Step 5: Solve for x
    x = 194,980,882.32/11,659.20
  6. Step 6: Final answer
    x = 16,723.35

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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.