Home / 18,920.32-26,108.82-10,961.92

Finding the Fourth Proportional to 18,920.32, 26,108.82 and 10,961.92

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Solution

The fourth proportional to 18,920.32, 26,108.82 and 10,961.92 is: 15,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.32 : 26,108.82 = 10,961.92 : x
  2. Step 2: Convert to fraction form
    18,920.32/26,108.82 = 10,961.92/x
  3. Step 3: Cross multiply
    18,920.32x = 26,108.82 × 10,961.92
  4. Step 4: Simplify right side
    18,920.32x = 286,202,796.13
  5. Step 5: Solve for x
    x = 286,202,796.13/18,920.32
  6. Step 6: Final answer
    x = 15,126.74

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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.