Home / 12,096.40-18,138.10-4,304.20

Finding the Fourth Proportional to 12,096.40, 18,138.10 and 4,304.20

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Solution

The fourth proportional to 12,096.40, 18,138.10 and 4,304.20 is: 6,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096.40 : 18,138.10 = 4,304.20 : x
  2. Step 2: Convert to fraction form
    12,096.40/18,138.10 = 4,304.20/x
  3. Step 3: Cross multiply
    12,096.40x = 18,138.10 × 4,304.20
  4. Step 4: Simplify right side
    12,096.40x = 78,070,010.02
  5. Step 5: Solve for x
    x = 78,070,010.02/12,096.40
  6. Step 6: Final answer
    x = 6,453.99

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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.