Home / 10,904.10-15,049.17-6,429.12

Finding the Fourth Proportional to 10,904.10, 15,049.17 and 6,429.12

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Solution

The fourth proportional to 10,904.10, 15,049.17 and 6,429.12 is: 8,873.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.10 : 15,049.17 = 6,429.12 : x
  2. Step 2: Convert to fraction form
    10,904.10/15,049.17 = 6,429.12/x
  3. Step 3: Cross multiply
    10,904.10x = 15,049.17 × 6,429.12
  4. Step 4: Simplify right side
    10,904.10x = 96,752,919.83
  5. Step 5: Solve for x
    x = 96,752,919.83/10,904.10
  6. Step 6: Final answer
    x = 8,873.08

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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.