Home / 15,170.10-20,932.20-8,454.26

Finding the Fourth Proportional to 15,170.10, 20,932.20 and 8,454.26

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Solution

The fourth proportional to 15,170.10, 20,932.20 and 8,454.26 is: 11,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,170.10 : 20,932.20 = 8,454.26 : x
  2. Step 2: Convert to fraction form
    15,170.10/20,932.20 = 8,454.26/x
  3. Step 3: Cross multiply
    15,170.10x = 20,932.20 × 8,454.26
  4. Step 4: Simplify right side
    15,170.10x = 176,966,261.17
  5. Step 5: Solve for x
    x = 176,966,261.17/15,170.10
  6. Step 6: Final answer
    x = 11,665.46

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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.