Home / 9,171.06-12,643.82-7,288.90

Finding the Fourth Proportional to 9,171.06, 12,643.82 and 7,288.90

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Solution

The fourth proportional to 9,171.06, 12,643.82 and 7,288.90 is: 10,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.06 : 12,643.82 = 7,288.90 : x
  2. Step 2: Convert to fraction form
    9,171.06/12,643.82 = 7,288.90/x
  3. Step 3: Cross multiply
    9,171.06x = 12,643.82 × 7,288.90
  4. Step 4: Simplify right side
    9,171.06x = 92,159,539.60
  5. Step 5: Solve for x
    x = 92,159,539.60/9,171.06
  6. Step 6: Final answer
    x = 10,048.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.