Home / 10,265.10-15,412.05-8,076.30

Finding the Fourth Proportional to 10,265.10, 15,412.05 and 8,076.30

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Solution

The fourth proportional to 10,265.10, 15,412.05 and 8,076.30 is: 12,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,265.10 : 15,412.05 = 8,076.30 : x
  2. Step 2: Convert to fraction form
    10,265.10/15,412.05 = 8,076.30/x
  3. Step 3: Cross multiply
    10,265.10x = 15,412.05 × 8,076.30
  4. Step 4: Simplify right side
    10,265.10x = 124,472,339.42
  5. Step 5: Solve for x
    x = 124,472,339.42/10,265.10
  6. Step 6: Final answer
    x = 12,125.78

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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.