Home / 10,477.20-15,718.11-3,459.38

Finding the Fourth Proportional to 10,477.20, 15,718.11 and 3,459.38

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Solution

The fourth proportional to 10,477.20, 15,718.11 and 3,459.38 is: 5,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.20 : 15,718.11 = 3,459.38 : x
  2. Step 2: Convert to fraction form
    10,477.20/15,718.11 = 3,459.38/x
  3. Step 3: Cross multiply
    10,477.20x = 15,718.11 × 3,459.38
  4. Step 4: Simplify right side
    10,477.20x = 54,374,915.37
  5. Step 5: Solve for x
    x = 54,374,915.37/10,477.20
  6. Step 6: Final answer
    x = 5,189.83

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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.