Home / 12,110.40-18,168.60-5,535.20

Finding the Fourth Proportional to 12,110.40, 18,168.60 and 5,535.20

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Solution

The fourth proportional to 12,110.40, 18,168.60 and 5,535.20 is: 8,304.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.40 : 18,168.60 = 5,535.20 : x
  2. Step 2: Convert to fraction form
    12,110.40/18,168.60 = 5,535.20/x
  3. Step 3: Cross multiply
    12,110.40x = 18,168.60 × 5,535.20
  4. Step 4: Simplify right side
    12,110.40x = 100,566,834.72
  5. Step 5: Solve for x
    x = 100,566,834.72/12,110.40
  6. Step 6: Final answer
    x = 8,304.17

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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.