Home / 10,340.32-15,484.56-8,160.88

Finding the Fourth Proportional to 10,340.32, 15,484.56 and 8,160.88

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Solution

The fourth proportional to 10,340.32, 15,484.56 and 8,160.88 is: 12,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.32 : 15,484.56 = 8,160.88 : x
  2. Step 2: Convert to fraction form
    10,340.32/15,484.56 = 8,160.88/x
  3. Step 3: Cross multiply
    10,340.32x = 15,484.56 × 8,160.88
  4. Step 4: Simplify right side
    10,340.32x = 126,367,636.01
  5. Step 5: Solve for x
    x = 126,367,636.01/10,340.32
  6. Step 6: Final answer
    x = 12,220.86

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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.