Home / 10,645.30-15,970.43-3,625.38

Finding the Fourth Proportional to 10,645.30, 15,970.43 and 3,625.38

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Solution

The fourth proportional to 10,645.30, 15,970.43 and 3,625.38 is: 5,438.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.30 : 15,970.43 = 3,625.38 : x
  2. Step 2: Convert to fraction form
    10,645.30/15,970.43 = 3,625.38/x
  3. Step 3: Cross multiply
    10,645.30x = 15,970.43 × 3,625.38
  4. Step 4: Simplify right side
    10,645.30x = 57,898,836.91
  5. Step 5: Solve for x
    x = 57,898,836.91/10,645.30
  6. Step 6: Final answer
    x = 5,438.91

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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.