Home / 10,408.40-15,618.70-3,839.16

Finding the Fourth Proportional to 10,408.40, 15,618.70 and 3,839.16

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Solution

The fourth proportional to 10,408.40, 15,618.70 and 3,839.16 is: 5,760.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.40 : 15,618.70 = 3,839.16 : x
  2. Step 2: Convert to fraction form
    10,408.40/15,618.70 = 3,839.16/x
  3. Step 3: Cross multiply
    10,408.40x = 15,618.70 × 3,839.16
  4. Step 4: Simplify right side
    10,408.40x = 59,962,688.29
  5. Step 5: Solve for x
    x = 59,962,688.29/10,408.40
  6. Step 6: Final answer
    x = 5,760.99

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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.