Home / 10,158.32-15,218.04-8,181.92

Finding the Fourth Proportional to 10,158.32, 15,218.04 and 8,181.92

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Solution

The fourth proportional to 10,158.32, 15,218.04 and 8,181.92 is: 12,257.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.32 : 15,218.04 = 8,181.92 : x
  2. Step 2: Convert to fraction form
    10,158.32/15,218.04 = 8,181.92/x
  3. Step 3: Cross multiply
    10,158.32x = 15,218.04 × 8,181.92
  4. Step 4: Simplify right side
    10,158.32x = 124,512,785.84
  5. Step 5: Solve for x
    x = 124,512,785.84/10,158.32
  6. Step 6: Final answer
    x = 12,257.22

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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.