Home / 15,516.89-23,280.96-7,618.56

Finding the Fourth Proportional to 15,516.89, 23,280.96 and 7,618.56

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Solution

The fourth proportional to 15,516.89, 23,280.96 and 7,618.56 is: 11,430.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.89 : 23,280.96 = 7,618.56 : x
  2. Step 2: Convert to fraction form
    15,516.89/23,280.96 = 7,618.56/x
  3. Step 3: Cross multiply
    15,516.89x = 23,280.96 × 7,618.56
  4. Step 4: Simplify right side
    15,516.89x = 177,367,390.62
  5. Step 5: Solve for x
    x = 177,367,390.62/15,516.89
  6. Step 6: Final answer
    x = 11,430.61

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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.