Home / 18,949.60-28,424.40-5,098.56

Finding the Fourth Proportional to 18,949.60, 28,424.40 and 5,098.56

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Solution

The fourth proportional to 18,949.60, 28,424.40 and 5,098.56 is: 7,647.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.60 : 28,424.40 = 5,098.56 : x
  2. Step 2: Convert to fraction form
    18,949.60/28,424.40 = 5,098.56/x
  3. Step 3: Cross multiply
    18,949.60x = 28,424.40 × 5,098.56
  4. Step 4: Simplify right side
    18,949.60x = 144,923,508.86
  5. Step 5: Solve for x
    x = 144,923,508.86/18,949.60
  6. Step 6: Final answer
    x = 7,647.84

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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.