Home / 12,750.18-17,590.20-7,371.62

Finding the Fourth Proportional to 12,750.18, 17,590.20 and 7,371.62

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Solution

The fourth proportional to 12,750.18, 17,590.20 and 7,371.62 is: 10,169.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.18 : 17,590.20 = 7,371.62 : x
  2. Step 2: Convert to fraction form
    12,750.18/17,590.20 = 7,371.62/x
  3. Step 3: Cross multiply
    12,750.18x = 17,590.20 × 7,371.62
  4. Step 4: Simplify right side
    12,750.18x = 129,668,248.14
  5. Step 5: Solve for x
    x = 129,668,248.14/12,750.18
  6. Step 6: Final answer
    x = 10,169.92

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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.