Home / 12,541.28-18,812.56-4,750.72

Finding the Fourth Proportional to 12,541.28, 18,812.56 and 4,750.72

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Solution

The fourth proportional to 12,541.28, 18,812.56 and 4,750.72 is: 7,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.28 : 18,812.56 = 4,750.72 : x
  2. Step 2: Convert to fraction form
    12,541.28/18,812.56 = 4,750.72/x
  3. Step 3: Cross multiply
    12,541.28x = 18,812.56 × 4,750.72
  4. Step 4: Simplify right side
    12,541.28x = 89,373,205.04
  5. Step 5: Solve for x
    x = 89,373,205.04/12,541.28
  6. Step 6: Final answer
    x = 7,126.32

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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.