Home / 15,172.84-22,754.80-5,310.28

Finding the Fourth Proportional to 15,172.84, 22,754.80 and 5,310.28

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Solution

The fourth proportional to 15,172.84, 22,754.80 and 5,310.28 is: 7,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.84 : 22,754.80 = 5,310.28 : x
  2. Step 2: Convert to fraction form
    15,172.84/22,754.80 = 5,310.28/x
  3. Step 3: Cross multiply
    15,172.84x = 22,754.80 × 5,310.28
  4. Step 4: Simplify right side
    15,172.84x = 120,834,359.34
  5. Step 5: Solve for x
    x = 120,834,359.34/15,172.84
  6. Step 6: Final answer
    x = 7,963.86

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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.