Home / 14,742.22-20,343.78-8,772.52

Finding the Fourth Proportional to 14,742.22, 20,343.78 and 8,772.52

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Solution

The fourth proportional to 14,742.22, 20,343.78 and 8,772.52 is: 12,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.22 : 20,343.78 = 8,772.52 : x
  2. Step 2: Convert to fraction form
    14,742.22/20,343.78 = 8,772.52/x
  3. Step 3: Cross multiply
    14,742.22x = 20,343.78 × 8,772.52
  4. Step 4: Simplify right side
    14,742.22x = 178,466,216.93
  5. Step 5: Solve for x
    x = 178,466,216.93/14,742.22
  6. Step 6: Final answer
    x = 12,105.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.