Home / 10,193.31-15,291.49-3,618.95

Finding the Fourth Proportional to 10,193.31, 15,291.49 and 3,618.95

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Solution

The fourth proportional to 10,193.31, 15,291.49 and 3,618.95 is: 5,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,193.31 : 15,291.49 = 3,618.95 : x
  2. Step 2: Convert to fraction form
    10,193.31/15,291.49 = 3,618.95/x
  3. Step 3: Cross multiply
    10,193.31x = 15,291.49 × 3,618.95
  4. Step 4: Simplify right side
    10,193.31x = 55,339,061.28
  5. Step 5: Solve for x
    x = 55,339,061.28/10,193.31
  6. Step 6: Final answer
    x = 5,428.96

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1.5x scale

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.