Home / 13,868.57-20,773.42-12,877.13

Finding the Fourth Proportional to 13,868.57, 20,773.42 and 12,877.13

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Solution

The fourth proportional to 13,868.57, 20,773.42 and 12,877.13 is: 19,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.57 : 20,773.42 = 12,877.13 : x
  2. Step 2: Convert to fraction form
    13,868.57/20,773.42 = 12,877.13/x
  3. Step 3: Cross multiply
    13,868.57x = 20,773.42 × 12,877.13
  4. Step 4: Simplify right side
    13,868.57x = 267,502,029.88
  5. Step 5: Solve for x
    x = 267,502,029.88/13,868.57
  6. Step 6: Final answer
    x = 19,288.36

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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.