Home / 10,626.28-15,939.45-3,961.40

Finding the Fourth Proportional to 10,626.28, 15,939.45 and 3,961.40

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Solution

The fourth proportional to 10,626.28, 15,939.45 and 3,961.40 is: 5,942.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,626.28 : 15,939.45 = 3,961.40 : x
  2. Step 2: Convert to fraction form
    10,626.28/15,939.45 = 3,961.40/x
  3. Step 3: Cross multiply
    10,626.28x = 15,939.45 × 3,961.40
  4. Step 4: Simplify right side
    10,626.28x = 63,142,457.53
  5. Step 5: Solve for x
    x = 63,142,457.53/10,626.28
  6. Step 6: Final answer
    x = 5,942.11

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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.