Home / 18,729.46-28,098.30-7,042.68

Finding the Fourth Proportional to 18,729.46, 28,098.30 and 7,042.68

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Solution

The fourth proportional to 18,729.46, 28,098.30 and 7,042.68 is: 10,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.46 : 28,098.30 = 7,042.68 : x
  2. Step 2: Convert to fraction form
    18,729.46/28,098.30 = 7,042.68/x
  3. Step 3: Cross multiply
    18,729.46x = 28,098.30 × 7,042.68
  4. Step 4: Simplify right side
    18,729.46x = 197,887,317.84
  5. Step 5: Solve for x
    x = 197,887,317.84/18,729.46
  6. Step 6: Final answer
    x = 10,565.56

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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.