Home / 11,210.20-15,451.86-8,964.88

Finding the Fourth Proportional to 11,210.20, 15,451.86 and 8,964.88

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Solution

The fourth proportional to 11,210.20, 15,451.86 and 8,964.88 is: 12,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.20 : 15,451.86 = 8,964.88 : x
  2. Step 2: Convert to fraction form
    11,210.20/15,451.86 = 8,964.88/x
  3. Step 3: Cross multiply
    11,210.20x = 15,451.86 × 8,964.88
  4. Step 4: Simplify right side
    11,210.20x = 138,524,070.68
  5. Step 5: Solve for x
    x = 138,524,070.68/11,210.20
  6. Step 6: Final answer
    x = 12,356.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.