Home / 18,370.09-25,350.75-9,986.59

Finding the Fourth Proportional to 18,370.09, 25,350.75 and 9,986.59

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Solution

The fourth proportional to 18,370.09, 25,350.75 and 9,986.59 is: 13,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.09 : 25,350.75 = 9,986.59 : x
  2. Step 2: Convert to fraction form
    18,370.09/25,350.75 = 9,986.59/x
  3. Step 3: Cross multiply
    18,370.09x = 25,350.75 × 9,986.59
  4. Step 4: Simplify right side
    18,370.09x = 253,167,546.44
  5. Step 5: Solve for x
    x = 253,167,546.44/18,370.09
  6. Step 6: Final answer
    x = 13,781.51

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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.