Home / 15,844.88-21,864.32-8,769.44

Finding the Fourth Proportional to 15,844.88, 21,864.32 and 8,769.44

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Solution

The fourth proportional to 15,844.88, 21,864.32 and 8,769.44 is: 12,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.88 : 21,864.32 = 8,769.44 : x
  2. Step 2: Convert to fraction form
    15,844.88/21,864.32 = 8,769.44/x
  3. Step 3: Cross multiply
    15,844.88x = 21,864.32 × 8,769.44
  4. Step 4: Simplify right side
    15,844.88x = 191,737,842.38
  5. Step 5: Solve for x
    x = 191,737,842.38/15,844.88
  6. Step 6: Final answer
    x = 12,100.93

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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.