Home / 12,475.10-18,712.42-4,155.73

Finding the Fourth Proportional to 12,475.10, 18,712.42 and 4,155.73

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Solution

The fourth proportional to 12,475.10, 18,712.42 and 4,155.73 is: 6,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.10 : 18,712.42 = 4,155.73 : x
  2. Step 2: Convert to fraction form
    12,475.10/18,712.42 = 4,155.73/x
  3. Step 3: Cross multiply
    12,475.10x = 18,712.42 × 4,155.73
  4. Step 4: Simplify right side
    12,475.10x = 77,763,708.00
  5. Step 5: Solve for x
    x = 77,763,708.00/12,475.10
  6. Step 6: Final answer
    x = 6,233.51

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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.