Home / 14,761.32-20,360.20-8,788.36

Finding the Fourth Proportional to 14,761.32, 20,360.20 and 8,788.36

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Solution

The fourth proportional to 14,761.32, 20,360.20 and 8,788.36 is: 12,121.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,761.32 : 20,360.20 = 8,788.36 : x
  2. Step 2: Convert to fraction form
    14,761.32/20,360.20 = 8,788.36/x
  3. Step 3: Cross multiply
    14,761.32x = 20,360.20 × 8,788.36
  4. Step 4: Simplify right side
    14,761.32x = 178,932,767.27
  5. Step 5: Solve for x
    x = 178,932,767.27/14,761.32
  6. Step 6: Final answer
    x = 12,121.73

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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.