Home / 13,580.24-20,380.60-10,876.88

Finding the Fourth Proportional to 13,580.24, 20,380.60 and 10,876.88

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Solution

The fourth proportional to 13,580.24, 20,380.60 and 10,876.88 is: 16,323.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.24 : 20,380.60 = 10,876.88 : x
  2. Step 2: Convert to fraction form
    13,580.24/20,380.60 = 10,876.88/x
  3. Step 3: Cross multiply
    13,580.24x = 20,380.60 × 10,876.88
  4. Step 4: Simplify right side
    13,580.24x = 221,677,340.53
  5. Step 5: Solve for x
    x = 221,677,340.53/13,580.24
  6. Step 6: Final answer
    x = 16,323.52

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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.