Home / 10,877.25-16,315.89-4,721.25

Finding the Fourth Proportional to 10,877.25, 16,315.89 and 4,721.25

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Solution

The fourth proportional to 10,877.25, 16,315.89 and 4,721.25 is: 7,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.25 : 16,315.89 = 4,721.25 : x
  2. Step 2: Convert to fraction form
    10,877.25/16,315.89 = 4,721.25/x
  3. Step 3: Cross multiply
    10,877.25x = 16,315.89 × 4,721.25
  4. Step 4: Simplify right side
    10,877.25x = 77,031,395.66
  5. Step 5: Solve for x
    x = 77,031,395.66/10,877.25
  6. Step 6: Final answer
    x = 7,081.88

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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.