Home / 12,081.60-18,114.30-5,504.40

Finding the Fourth Proportional to 12,081.60, 18,114.30 and 5,504.40

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Solution

The fourth proportional to 12,081.60, 18,114.30 and 5,504.40 is: 8,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.60 : 18,114.30 = 5,504.40 : x
  2. Step 2: Convert to fraction form
    12,081.60/18,114.30 = 5,504.40/x
  3. Step 3: Cross multiply
    12,081.60x = 18,114.30 × 5,504.40
  4. Step 4: Simplify right side
    12,081.60x = 99,708,352.92
  5. Step 5: Solve for x
    x = 99,708,352.92/12,081.60
  6. Step 6: Final answer
    x = 8,252.91

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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.