Home / 13,451.92-20,180.52-4,687.12

Finding the Fourth Proportional to 13,451.92, 20,180.52 and 4,687.12

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Solution

The fourth proportional to 13,451.92, 20,180.52 and 4,687.12 is: 7,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.92 : 20,180.52 = 4,687.12 : x
  2. Step 2: Convert to fraction form
    13,451.92/20,180.52 = 4,687.12/x
  3. Step 3: Cross multiply
    13,451.92x = 20,180.52 × 4,687.12
  4. Step 4: Simplify right side
    13,451.92x = 94,588,518.90
  5. Step 5: Solve for x
    x = 94,588,518.90/13,451.92
  6. Step 6: Final answer
    x = 7,031.60

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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.