Home / 10,625.31-15,921.33-6,721.50

Finding the Fourth Proportional to 10,625.31, 15,921.33 and 6,721.50

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Solution

The fourth proportional to 10,625.31, 15,921.33 and 6,721.50 is: 10,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,625.31 : 15,921.33 = 6,721.50 : x
  2. Step 2: Convert to fraction form
    10,625.31/15,921.33 = 6,721.50/x
  3. Step 3: Cross multiply
    10,625.31x = 15,921.33 × 6,721.50
  4. Step 4: Simplify right side
    10,625.31x = 107,015,219.60
  5. Step 5: Solve for x
    x = 107,015,219.60/10,625.31
  6. Step 6: Final answer
    x = 10,071.73

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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.