Home / 9,147.55-13,724.21-5,453.95

Finding the Fourth Proportional to 9,147.55, 13,724.21 and 5,453.95

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Solution

The fourth proportional to 9,147.55, 13,724.21 and 5,453.95 is: 8,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.55 : 13,724.21 = 5,453.95 : x
  2. Step 2: Convert to fraction form
    9,147.55/13,724.21 = 5,453.95/x
  3. Step 3: Cross multiply
    9,147.55x = 13,724.21 × 5,453.95
  4. Step 4: Simplify right side
    9,147.55x = 74,851,155.13
  5. Step 5: Solve for x
    x = 74,851,155.13/9,147.55
  6. Step 6: Final answer
    x = 8,182.65

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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.