Home / 18,370.14-25,351.83-9,986.46

Finding the Fourth Proportional to 18,370.14, 25,351.83 and 9,986.46

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Solution

The fourth proportional to 18,370.14, 25,351.83 and 9,986.46 is: 13,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.14 : 25,351.83 = 9,986.46 : x
  2. Step 2: Convert to fraction form
    18,370.14/25,351.83 = 9,986.46/x
  3. Step 3: Cross multiply
    18,370.14x = 25,351.83 × 9,986.46
  4. Step 4: Simplify right side
    18,370.14x = 253,175,036.22
  5. Step 5: Solve for x
    x = 253,175,036.22/18,370.14
  6. Step 6: Final answer
    x = 13,781.88

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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.