Home / 18,612.38-27,923.12-9,256.80

Finding the Fourth Proportional to 18,612.38, 27,923.12 and 9,256.80

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Solution

The fourth proportional to 18,612.38, 27,923.12 and 9,256.80 is: 13,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.38 : 27,923.12 = 9,256.80 : x
  2. Step 2: Convert to fraction form
    18,612.38/27,923.12 = 9,256.80/x
  3. Step 3: Cross multiply
    18,612.38x = 27,923.12 × 9,256.80
  4. Step 4: Simplify right side
    18,612.38x = 258,478,690.93
  5. Step 5: Solve for x
    x = 258,478,690.93/18,612.38
  6. Step 6: Final answer
    x = 13,887.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.