Home / 12,240.36-18,304.50-9,122.54

Finding the Fourth Proportional to 12,240.36, 18,304.50 and 9,122.54

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Solution

The fourth proportional to 12,240.36, 18,304.50 and 9,122.54 is: 13,642.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.36 : 18,304.50 = 9,122.54 : x
  2. Step 2: Convert to fraction form
    12,240.36/18,304.50 = 9,122.54/x
  3. Step 3: Cross multiply
    12,240.36x = 18,304.50 × 9,122.54
  4. Step 4: Simplify right side
    12,240.36x = 166,983,441.91
  5. Step 5: Solve for x
    x = 166,983,441.91/12,240.36
  6. Step 6: Final answer
    x = 13,642.04

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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.