Home / 18,369.48-25,350.13-9,986.16

Finding the Fourth Proportional to 18,369.48, 25,350.13 and 9,986.16

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Solution

The fourth proportional to 18,369.48, 25,350.13 and 9,986.16 is: 13,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.48 : 25,350.13 = 9,986.16 : x
  2. Step 2: Convert to fraction form
    18,369.48/25,350.13 = 9,986.16/x
  3. Step 3: Cross multiply
    18,369.48x = 25,350.13 × 9,986.16
  4. Step 4: Simplify right side
    18,369.48x = 253,150,454.20
  5. Step 5: Solve for x
    x = 253,150,454.20/18,369.48
  6. Step 6: Final answer
    x = 13,781.04

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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.