Home / 10,431.93-15,648.30-2,640.95

Finding the Fourth Proportional to 10,431.93, 15,648.30 and 2,640.95

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Solution

The fourth proportional to 10,431.93, 15,648.30 and 2,640.95 is: 3,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.93 : 15,648.30 = 2,640.95 : x
  2. Step 2: Convert to fraction form
    10,431.93/15,648.30 = 2,640.95/x
  3. Step 3: Cross multiply
    10,431.93x = 15,648.30 × 2,640.95
  4. Step 4: Simplify right side
    10,431.93x = 41,326,299.64
  5. Step 5: Solve for x
    x = 41,326,299.64/10,431.93
  6. Step 6: Final answer
    x = 3,961.52

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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.