Home / 10,115.46-15,180.02-3,541.70

Finding the Fourth Proportional to 10,115.46, 15,180.02 and 3,541.70

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Solution

The fourth proportional to 10,115.46, 15,180.02 and 3,541.70 is: 5,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.46 : 15,180.02 = 3,541.70 : x
  2. Step 2: Convert to fraction form
    10,115.46/15,180.02 = 3,541.70/x
  3. Step 3: Cross multiply
    10,115.46x = 15,180.02 × 3,541.70
  4. Step 4: Simplify right side
    10,115.46x = 53,763,076.83
  5. Step 5: Solve for x
    x = 53,763,076.83/10,115.46
  6. Step 6: Final answer
    x = 5,314.94

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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.