Home / 15,060.96-20,785.44-8,773.20

Finding the Fourth Proportional to 15,060.96, 20,785.44 and 8,773.20

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Solution

The fourth proportional to 15,060.96, 20,785.44 and 8,773.20 is: 12,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.96 : 20,785.44 = 8,773.20 : x
  2. Step 2: Convert to fraction form
    15,060.96/20,785.44 = 8,773.20/x
  3. Step 3: Cross multiply
    15,060.96x = 20,785.44 × 8,773.20
  4. Step 4: Simplify right side
    15,060.96x = 182,354,822.21
  5. Step 5: Solve for x
    x = 182,354,822.21/15,060.96
  6. Step 6: Final answer
    x = 12,107.78

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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.