Home / 18,820.32-25,976.08-11,268.32

Finding the Fourth Proportional to 18,820.32, 25,976.08 and 11,268.32

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Solution

The fourth proportional to 18,820.32, 25,976.08 and 11,268.32 is: 15,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.32 : 25,976.08 = 11,268.32 : x
  2. Step 2: Convert to fraction form
    18,820.32/25,976.08 = 11,268.32/x
  3. Step 3: Cross multiply
    18,820.32x = 25,976.08 × 11,268.32
  4. Step 4: Simplify right side
    18,820.32x = 292,706,781.79
  5. Step 5: Solve for x
    x = 292,706,781.79/18,820.32
  6. Step 6: Final answer
    x = 15,552.70

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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.