Home / 8,299.13-12,419.46-5,180.60

Finding the Fourth Proportional to 8,299.13, 12,419.46 and 5,180.60

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Solution

The fourth proportional to 8,299.13, 12,419.46 and 5,180.60 is: 7,752.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,299.13 : 12,419.46 = 5,180.60 : x
  2. Step 2: Convert to fraction form
    8,299.13/12,419.46 = 5,180.60/x
  3. Step 3: Cross multiply
    8,299.13x = 12,419.46 × 5,180.60
  4. Step 4: Simplify right side
    8,299.13x = 64,340,285.52
  5. Step 5: Solve for x
    x = 64,340,285.52/8,299.13
  6. Step 6: Final answer
    x = 7,752.66

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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.