Home / 10,074.31-15,121.80-6,732.46

Finding the Fourth Proportional to 10,074.31, 15,121.80 and 6,732.46

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Solution

The fourth proportional to 10,074.31, 15,121.80 and 6,732.46 is: 10,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.31 : 15,121.80 = 6,732.46 : x
  2. Step 2: Convert to fraction form
    10,074.31/15,121.80 = 6,732.46/x
  3. Step 3: Cross multiply
    10,074.31x = 15,121.80 × 6,732.46
  4. Step 4: Simplify right side
    10,074.31x = 101,806,913.63
  5. Step 5: Solve for x
    x = 101,806,913.63/10,074.31
  6. Step 6: Final answer
    x = 10,105.60

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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.