Home / 13,923.18-20,862.42-11,135.16

Finding the Fourth Proportional to 13,923.18, 20,862.42 and 11,135.16

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Solution

The fourth proportional to 13,923.18, 20,862.42 and 11,135.16 is: 16,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.18 : 20,862.42 = 11,135.16 : x
  2. Step 2: Convert to fraction form
    13,923.18/20,862.42 = 11,135.16/x
  3. Step 3: Cross multiply
    13,923.18x = 20,862.42 × 11,135.16
  4. Step 4: Simplify right side
    13,923.18x = 232,306,384.69
  5. Step 5: Solve for x
    x = 232,306,384.69/13,923.18
  6. Step 6: Final answer
    x = 16,684.87

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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.