Home / 18,516.80-25,551.96-11,442.08

Finding the Fourth Proportional to 18,516.80, 25,551.96 and 11,442.08

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Solution

The fourth proportional to 18,516.80, 25,551.96 and 11,442.08 is: 15,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.80 : 25,551.96 = 11,442.08 : x
  2. Step 2: Convert to fraction form
    18,516.80/25,551.96 = 11,442.08/x
  3. Step 3: Cross multiply
    18,516.80x = 25,551.96 × 11,442.08
  4. Step 4: Simplify right side
    18,516.80x = 292,367,570.48
  5. Step 5: Solve for x
    x = 292,367,570.48/18,516.80
  6. Step 6: Final answer
    x = 15,789.31

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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.