Home / 10,400.40-15,599.06-3,381.06

Finding the Fourth Proportional to 10,400.40, 15,599.06 and 3,381.06

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Solution

The fourth proportional to 10,400.40, 15,599.06 and 3,381.06 is: 5,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.40 : 15,599.06 = 3,381.06 : x
  2. Step 2: Convert to fraction form
    10,400.40/15,599.06 = 3,381.06/x
  3. Step 3: Cross multiply
    10,400.40x = 15,599.06 × 3,381.06
  4. Step 4: Simplify right side
    10,400.40x = 52,741,357.80
  5. Step 5: Solve for x
    x = 52,741,357.80/10,400.40
  6. Step 6: Final answer
    x = 5,071.09

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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.