Home / 12,252.20-18,378.30-10,502.60

Finding the Fourth Proportional to 12,252.20, 18,378.30 and 10,502.60

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Solution

The fourth proportional to 12,252.20, 18,378.30 and 10,502.60 is: 15,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.20 : 18,378.30 = 10,502.60 : x
  2. Step 2: Convert to fraction form
    12,252.20/18,378.30 = 10,502.60/x
  3. Step 3: Cross multiply
    12,252.20x = 18,378.30 × 10,502.60
  4. Step 4: Simplify right side
    12,252.20x = 193,019,933.58
  5. Step 5: Solve for x
    x = 193,019,933.58/12,252.20
  6. Step 6: Final answer
    x = 15,753.90

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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.