Home / 8,119.04-12,180.71-2,572.49

Finding the Fourth Proportional to 8,119.04, 12,180.71 and 2,572.49

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Solution

The fourth proportional to 8,119.04, 12,180.71 and 2,572.49 is: 3,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.04 : 12,180.71 = 2,572.49 : x
  2. Step 2: Convert to fraction form
    8,119.04/12,180.71 = 2,572.49/x
  3. Step 3: Cross multiply
    8,119.04x = 12,180.71 × 2,572.49
  4. Step 4: Simplify right side
    8,119.04x = 31,334,791.55
  5. Step 5: Solve for x
    x = 31,334,791.55/8,119.04
  6. Step 6: Final answer
    x = 3,859.42

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Half scale
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Double scale
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Similar ratio
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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.