Home / 12,454.04-17,188.62-7,149.08

Finding the Fourth Proportional to 12,454.04, 17,188.62 and 7,149.08

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Solution

The fourth proportional to 12,454.04, 17,188.62 and 7,149.08 is: 9,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.04 : 17,188.62 = 7,149.08 : x
  2. Step 2: Convert to fraction form
    12,454.04/17,188.62 = 7,149.08/x
  3. Step 3: Cross multiply
    12,454.04x = 17,188.62 × 7,149.08
  4. Step 4: Simplify right side
    12,454.04x = 122,882,819.47
  5. Step 5: Solve for x
    x = 122,882,819.47/12,454.04
  6. Step 6: Final answer
    x = 9,866.90

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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.