Home / 18,422.40-27,633.60-8,580.90

Finding the Fourth Proportional to 18,422.40, 27,633.60 and 8,580.90

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Solution

The fourth proportional to 18,422.40, 27,633.60 and 8,580.90 is: 12,871.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.40 : 27,633.60 = 8,580.90 : x
  2. Step 2: Convert to fraction form
    18,422.40/27,633.60 = 8,580.90/x
  3. Step 3: Cross multiply
    18,422.40x = 27,633.60 × 8,580.90
  4. Step 4: Simplify right side
    18,422.40x = 237,121,158.24
  5. Step 5: Solve for x
    x = 237,121,158.24/18,422.40
  6. Step 6: Final answer
    x = 12,871.35

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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.