Home / 12,350.72-18,512.04-5,775.68

Finding the Fourth Proportional to 12,350.72, 18,512.04 and 5,775.68

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Solution

The fourth proportional to 12,350.72, 18,512.04 and 5,775.68 is: 8,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,350.72 : 18,512.04 = 5,775.68 : x
  2. Step 2: Convert to fraction form
    12,350.72/18,512.04 = 5,775.68/x
  3. Step 3: Cross multiply
    12,350.72x = 18,512.04 × 5,775.68
  4. Step 4: Simplify right side
    12,350.72x = 106,919,619.19
  5. Step 5: Solve for x
    x = 106,919,619.19/12,350.72
  6. Step 6: Final answer
    x = 8,656.95

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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.