Home / 15,558.50-23,340.18-5,172.68

Finding the Fourth Proportional to 15,558.50, 23,340.18 and 5,172.68

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Solution

The fourth proportional to 15,558.50, 23,340.18 and 5,172.68 is: 7,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.50 : 23,340.18 = 5,172.68 : x
  2. Step 2: Convert to fraction form
    15,558.50/23,340.18 = 5,172.68/x
  3. Step 3: Cross multiply
    15,558.50x = 23,340.18 × 5,172.68
  4. Step 4: Simplify right side
    15,558.50x = 120,731,282.28
  5. Step 5: Solve for x
    x = 120,731,282.28/15,558.50
  6. Step 6: Final answer
    x = 7,759.83

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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.