Home / 12,449.46-17,167.28-9,617.28

Finding the Fourth Proportional to 12,449.46, 17,167.28 and 9,617.28

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Solution

The fourth proportional to 12,449.46, 17,167.28 and 9,617.28 is: 13,261.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.46 : 17,167.28 = 9,617.28 : x
  2. Step 2: Convert to fraction form
    12,449.46/17,167.28 = 9,617.28/x
  3. Step 3: Cross multiply
    12,449.46x = 17,167.28 × 9,617.28
  4. Step 4: Simplify right side
    12,449.46x = 165,102,538.60
  5. Step 5: Solve for x
    x = 165,102,538.60/12,449.46
  6. Step 6: Final answer
    x = 13,261.82

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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.