Home / 10,347.78-15,521.85-3,422.46

Finding the Fourth Proportional to 10,347.78, 15,521.85 and 3,422.46

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Solution

The fourth proportional to 10,347.78, 15,521.85 and 3,422.46 is: 5,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.78 : 15,521.85 = 3,422.46 : x
  2. Step 2: Convert to fraction form
    10,347.78/15,521.85 = 3,422.46/x
  3. Step 3: Cross multiply
    10,347.78x = 15,521.85 × 3,422.46
  4. Step 4: Simplify right side
    10,347.78x = 53,122,910.75
  5. Step 5: Solve for x
    x = 53,122,910.75/10,347.78
  6. Step 6: Final answer
    x = 5,133.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.