Home / 13,888.56-20,877.95-11,145.23

Finding the Fourth Proportional to 13,888.56, 20,877.95 and 11,145.23

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Solution

The fourth proportional to 13,888.56, 20,877.95 and 11,145.23 is: 16,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.56 : 20,877.95 = 11,145.23 : x
  2. Step 2: Convert to fraction form
    13,888.56/20,877.95 = 11,145.23/x
  3. Step 3: Cross multiply
    13,888.56x = 20,877.95 × 11,145.23
  4. Step 4: Simplify right side
    13,888.56x = 232,689,556.44
  5. Step 5: Solve for x
    x = 232,689,556.44/13,888.56
  6. Step 6: Final answer
    x = 16,754.04

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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.