Home / 9,122.43-13,678.50-2,881.29

Finding the Fourth Proportional to 9,122.43, 13,678.50 and 2,881.29

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Solution

The fourth proportional to 9,122.43, 13,678.50 and 2,881.29 is: 4,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.43 : 13,678.50 = 2,881.29 : x
  2. Step 2: Convert to fraction form
    9,122.43/13,678.50 = 2,881.29/x
  3. Step 3: Cross multiply
    9,122.43x = 13,678.50 × 2,881.29
  4. Step 4: Simplify right side
    9,122.43x = 39,411,725.27
  5. Step 5: Solve for x
    x = 39,411,725.27/9,122.43
  6. Step 6: Final answer
    x = 4,320.31

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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.