Home / 10,292.80-15,436.44-5,097.28

Finding the Fourth Proportional to 10,292.80, 15,436.44 and 5,097.28

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Solution

The fourth proportional to 10,292.80, 15,436.44 and 5,097.28 is: 7,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,292.80 : 15,436.44 = 5,097.28 : x
  2. Step 2: Convert to fraction form
    10,292.80/15,436.44 = 5,097.28/x
  3. Step 3: Cross multiply
    10,292.80x = 15,436.44 × 5,097.28
  4. Step 4: Simplify right side
    10,292.80x = 78,683,856.88
  5. Step 5: Solve for x
    x = 78,683,856.88/10,292.80
  6. Step 6: Final answer
    x = 7,644.55

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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.