Home / 12,025.40-18,013.02-9,672.70

Finding the Fourth Proportional to 12,025.40, 18,013.02 and 9,672.70

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Solution

The fourth proportional to 12,025.40, 18,013.02 and 9,672.70 is: 14,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.40 : 18,013.02 = 9,672.70 : x
  2. Step 2: Convert to fraction form
    12,025.40/18,013.02 = 9,672.70/x
  3. Step 3: Cross multiply
    12,025.40x = 18,013.02 × 9,672.70
  4. Step 4: Simplify right side
    12,025.40x = 174,234,538.55
  5. Step 5: Solve for x
    x = 174,234,538.55/12,025.40
  6. Step 6: Final answer
    x = 14,488.88

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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.