Home / 26,721.56-40,081.08-9,191.72

Finding the Fourth Proportional to 26,721.56, 40,081.08 and 9,191.72

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Solution

The fourth proportional to 26,721.56, 40,081.08 and 9,191.72 is: 13,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,721.56 : 40,081.08 = 9,191.72 : x
  2. Step 2: Convert to fraction form
    26,721.56/40,081.08 = 9,191.72/x
  3. Step 3: Cross multiply
    26,721.56x = 40,081.08 × 9,191.72
  4. Step 4: Simplify right side
    26,721.56x = 368,414,064.66
  5. Step 5: Solve for x
    x = 368,414,064.66/26,721.56
  6. Step 6: Final answer
    x = 13,787.15

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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.