Home / 10,206.62-15,310.28-2,811.06

Finding the Fourth Proportional to 10,206.62, 15,310.28 and 2,811.06

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Solution

The fourth proportional to 10,206.62, 15,310.28 and 2,811.06 is: 4,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.62 : 15,310.28 = 2,811.06 : x
  2. Step 2: Convert to fraction form
    10,206.62/15,310.28 = 2,811.06/x
  3. Step 3: Cross multiply
    10,206.62x = 15,310.28 × 2,811.06
  4. Step 4: Simplify right side
    10,206.62x = 43,038,115.70
  5. Step 5: Solve for x
    x = 43,038,115.70/10,206.62
  6. Step 6: Final answer
    x = 4,216.69

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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.