Home / 12,252.30-18,378.45-8,364.30

Finding the Fourth Proportional to 12,252.30, 18,378.45 and 8,364.30

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Solution

The fourth proportional to 12,252.30, 18,378.45 and 8,364.30 is: 12,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.30 : 18,378.45 = 8,364.30 : x
  2. Step 2: Convert to fraction form
    12,252.30/18,378.45 = 8,364.30/x
  3. Step 3: Cross multiply
    12,252.30x = 18,378.45 × 8,364.30
  4. Step 4: Simplify right side
    12,252.30x = 153,722,869.34
  5. Step 5: Solve for x
    x = 153,722,869.34/12,252.30
  6. Step 6: Final answer
    x = 12,546.45

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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.