Home / 18,915.46-28,373.19-5,767.54

Finding the Fourth Proportional to 18,915.46, 28,373.19 and 5,767.54

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Solution

The fourth proportional to 18,915.46, 28,373.19 and 5,767.54 is: 8,651.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915.46 : 28,373.19 = 5,767.54 : x
  2. Step 2: Convert to fraction form
    18,915.46/28,373.19 = 5,767.54/x
  3. Step 3: Cross multiply
    18,915.46x = 28,373.19 × 5,767.54
  4. Step 4: Simplify right side
    18,915.46x = 163,643,508.25
  5. Step 5: Solve for x
    x = 163,643,508.25/18,915.46
  6. Step 6: Final answer
    x = 8,651.31

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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.