Home / 10,347.50-15,521.52-3,422

Finding the Fourth Proportional to 10,347.50, 15,521.52 and 3,422

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Solution

The fourth proportional to 10,347.50, 15,521.52 and 3,422 is: 5,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.50 : 15,521.52 = 3,422 : x
  2. Step 2: Convert to fraction form
    10,347.50/15,521.52 = 3,422/x
  3. Step 3: Cross multiply
    10,347.50x = 15,521.52 × 3,422
  4. Step 4: Simplify right side
    10,347.50x = 53,114,641.44
  5. Step 5: Solve for x
    x = 53,114,641.44/10,347.50
  6. Step 6: Final answer
    x = 5,133.09

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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.