Home / 12,042.28-16,622.19-8,458.10

Finding the Fourth Proportional to 12,042.28, 16,622.19 and 8,458.10

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Solution

The fourth proportional to 12,042.28, 16,622.19 and 8,458.10 is: 11,674.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.28 : 16,622.19 = 8,458.10 : x
  2. Step 2: Convert to fraction form
    12,042.28/16,622.19 = 8,458.10/x
  3. Step 3: Cross multiply
    12,042.28x = 16,622.19 × 8,458.10
  4. Step 4: Simplify right side
    12,042.28x = 140,592,145.24
  5. Step 5: Solve for x
    x = 140,592,145.24/12,042.28
  6. Step 6: Final answer
    x = 11,674.88

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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.