Home / 18,701.54-25,799.44-11,143.64

Finding the Fourth Proportional to 18,701.54, 25,799.44 and 11,143.64

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Solution

The fourth proportional to 18,701.54, 25,799.44 and 11,143.64 is: 15,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.54 : 25,799.44 = 11,143.64 : x
  2. Step 2: Convert to fraction form
    18,701.54/25,799.44 = 11,143.64/x
  3. Step 3: Cross multiply
    18,701.54x = 25,799.44 × 11,143.64
  4. Step 4: Simplify right side
    18,701.54x = 287,499,514.71
  5. Step 5: Solve for x
    x = 287,499,514.71/18,701.54
  6. Step 6: Final answer
    x = 15,373.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.