Home / 12,571.21-17,343.31-8,097.55

Finding the Fourth Proportional to 12,571.21, 17,343.31 and 8,097.55

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Solution

The fourth proportional to 12,571.21, 17,343.31 and 8,097.55 is: 11,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.21 : 17,343.31 = 8,097.55 : x
  2. Step 2: Convert to fraction form
    12,571.21/17,343.31 = 8,097.55/x
  3. Step 3: Cross multiply
    12,571.21x = 17,343.31 × 8,097.55
  4. Step 4: Simplify right side
    12,571.21x = 140,438,279.40
  5. Step 5: Solve for x
    x = 140,438,279.40/12,571.21
  6. Step 6: Final answer
    x = 11,171.43

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Half scale
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Double scale
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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.