Home / 10,881.20-16,332.60-5,340.80

Finding the Fourth Proportional to 10,881.20, 16,332.60 and 5,340.80

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Solution

The fourth proportional to 10,881.20, 16,332.60 and 5,340.80 is: 8,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.20 : 16,332.60 = 5,340.80 : x
  2. Step 2: Convert to fraction form
    10,881.20/16,332.60 = 5,340.80/x
  3. Step 3: Cross multiply
    10,881.20x = 16,332.60 × 5,340.80
  4. Step 4: Simplify right side
    10,881.20x = 87,229,150.08
  5. Step 5: Solve for x
    x = 87,229,150.08/10,881.20
  6. Step 6: Final answer
    x = 8,016.50

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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.