Home / 10,440.54-15,665.88-5,176.02

Finding the Fourth Proportional to 10,440.54, 15,665.88 and 5,176.02

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Solution

The fourth proportional to 10,440.54, 15,665.88 and 5,176.02 is: 7,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.54 : 15,665.88 = 5,176.02 : x
  2. Step 2: Convert to fraction form
    10,440.54/15,665.88 = 5,176.02/x
  3. Step 3: Cross multiply
    10,440.54x = 15,665.88 × 5,176.02
  4. Step 4: Simplify right side
    10,440.54x = 81,086,908.20
  5. Step 5: Solve for x
    x = 81,086,908.20/10,440.54
  6. Step 6: Final answer
    x = 7,766.54

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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.