Home / 12,168.08-18,240.60-5,247.44

Finding the Fourth Proportional to 12,168.08, 18,240.60 and 5,247.44

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Solution

The fourth proportional to 12,168.08, 18,240.60 and 5,247.44 is: 7,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.08 : 18,240.60 = 5,247.44 : x
  2. Step 2: Convert to fraction form
    12,168.08/18,240.60 = 5,247.44/x
  3. Step 3: Cross multiply
    12,168.08x = 18,240.60 × 5,247.44
  4. Step 4: Simplify right side
    12,168.08x = 95,716,454.06
  5. Step 5: Solve for x
    x = 95,716,454.06/12,168.08
  6. Step 6: Final answer
    x = 7,866.19

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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.