Home / 13,500.96-18,635.28-8,535.84

Finding the Fourth Proportional to 13,500.96, 18,635.28 and 8,535.84

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Solution

The fourth proportional to 13,500.96, 18,635.28 and 8,535.84 is: 11,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.96 : 18,635.28 = 8,535.84 : x
  2. Step 2: Convert to fraction form
    13,500.96/18,635.28 = 8,535.84/x
  3. Step 3: Cross multiply
    13,500.96x = 18,635.28 × 8,535.84
  4. Step 4: Simplify right side
    13,500.96x = 159,067,768.44
  5. Step 5: Solve for x
    x = 159,067,768.44/13,500.96
  6. Step 6: Final answer
    x = 11,781.96

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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.