Home / 18,689.49-25,791.29-10,191.58

Finding the Fourth Proportional to 18,689.49, 25,791.29 and 10,191.58

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Solution

The fourth proportional to 18,689.49, 25,791.29 and 10,191.58 is: 14,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.49 : 25,791.29 = 10,191.58 : x
  2. Step 2: Convert to fraction form
    18,689.49/25,791.29 = 10,191.58/x
  3. Step 3: Cross multiply
    18,689.49x = 25,791.29 × 10,191.58
  4. Step 4: Simplify right side
    18,689.49x = 262,853,944.38
  5. Step 5: Solve for x
    x = 262,853,944.38/18,689.49
  6. Step 6: Final answer
    x = 14,064.27

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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.