Home / 10,253.66-15,375.63-5,318.36

Finding the Fourth Proportional to 10,253.66, 15,375.63 and 5,318.36

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Solution

The fourth proportional to 10,253.66, 15,375.63 and 5,318.36 is: 7,975.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.66 : 15,375.63 = 5,318.36 : x
  2. Step 2: Convert to fraction form
    10,253.66/15,375.63 = 5,318.36/x
  3. Step 3: Cross multiply
    10,253.66x = 15,375.63 × 5,318.36
  4. Step 4: Simplify right side
    10,253.66x = 81,773,135.57
  5. Step 5: Solve for x
    x = 81,773,135.57/10,253.66
  6. Step 6: Final answer
    x = 7,975.02

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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.