Home / 10,205.28-15,308.49-3,186.26

Finding the Fourth Proportional to 10,205.28, 15,308.49 and 3,186.26

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Solution

The fourth proportional to 10,205.28, 15,308.49 and 3,186.26 is: 4,779.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.28 : 15,308.49 = 3,186.26 : x
  2. Step 2: Convert to fraction form
    10,205.28/15,308.49 = 3,186.26/x
  3. Step 3: Cross multiply
    10,205.28x = 15,308.49 × 3,186.26
  4. Step 4: Simplify right side
    10,205.28x = 48,776,826.97
  5. Step 5: Solve for x
    x = 48,776,826.97/10,205.28
  6. Step 6: Final answer
    x = 4,779.57

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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.