Home / 12,252.31-18,378.39-3,487.23

Finding the Fourth Proportional to 12,252.31, 18,378.39 and 3,487.23

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Solution

The fourth proportional to 12,252.31, 18,378.39 and 3,487.23 is: 5,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.31 : 18,378.39 = 3,487.23 : x
  2. Step 2: Convert to fraction form
    12,252.31/18,378.39 = 3,487.23/x
  3. Step 3: Cross multiply
    12,252.31x = 18,378.39 × 3,487.23
  4. Step 4: Simplify right side
    12,252.31x = 64,089,686.04
  5. Step 5: Solve for x
    x = 64,089,686.04/12,252.31
  6. Step 6: Final answer
    x = 5,230.83

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Double scale
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Similar ratio
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1.5x scale

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.