Home / 15,864.34-21,893.25-8,791.22

Finding the Fourth Proportional to 15,864.34, 21,893.25 and 8,791.22

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Solution

The fourth proportional to 15,864.34, 21,893.25 and 8,791.22 is: 12,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864.34 : 21,893.25 = 8,791.22 : x
  2. Step 2: Convert to fraction form
    15,864.34/21,893.25 = 8,791.22/x
  3. Step 3: Cross multiply
    15,864.34x = 21,893.25 × 8,791.22
  4. Step 4: Simplify right side
    15,864.34x = 192,468,377.27
  5. Step 5: Solve for x
    x = 192,468,377.27/15,864.34
  6. Step 6: Final answer
    x = 12,132.14

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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.