Home / 10,440.19-15,656.40-4,198.10

Finding the Fourth Proportional to 10,440.19, 15,656.40 and 4,198.10

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Solution

The fourth proportional to 10,440.19, 15,656.40 and 4,198.10 is: 6,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.19 : 15,656.40 = 4,198.10 : x
  2. Step 2: Convert to fraction form
    10,440.19/15,656.40 = 4,198.10/x
  3. Step 3: Cross multiply
    10,440.19x = 15,656.40 × 4,198.10
  4. Step 4: Simplify right side
    10,440.19x = 65,727,132.84
  5. Step 5: Solve for x
    x = 65,727,132.84/10,440.19
  6. Step 6: Final answer
    x = 6,295.59

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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.