Home / 26,315.78-39,489.23-9,687.49

Finding the Fourth Proportional to 26,315.78, 39,489.23 and 9,687.49

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Solution

The fourth proportional to 26,315.78, 39,489.23 and 9,687.49 is: 14,536.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,315.78 : 39,489.23 = 9,687.49 : x
  2. Step 2: Convert to fraction form
    26,315.78/39,489.23 = 9,687.49/x
  3. Step 3: Cross multiply
    26,315.78x = 39,489.23 × 9,687.49
  4. Step 4: Simplify right side
    26,315.78x = 382,551,446.23
  5. Step 5: Solve for x
    x = 382,551,446.23/26,315.78
  6. Step 6: Final answer
    x = 14,536.96

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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.