Home / 13,889.80-20,841.33-6,493.18

Finding the Fourth Proportional to 13,889.80, 20,841.33 and 6,493.18

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Solution

The fourth proportional to 13,889.80, 20,841.33 and 6,493.18 is: 9,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.80 : 20,841.33 = 6,493.18 : x
  2. Step 2: Convert to fraction form
    13,889.80/20,841.33 = 6,493.18/x
  3. Step 3: Cross multiply
    13,889.80x = 20,841.33 × 6,493.18
  4. Step 4: Simplify right side
    13,889.80x = 135,326,507.13
  5. Step 5: Solve for x
    x = 135,326,507.13/13,889.80
  6. Step 6: Final answer
    x = 9,742.87

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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.