Home / 10,286.82-15,420.33-6,779.52

Finding the Fourth Proportional to 10,286.82, 15,420.33 and 6,779.52

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Solution

The fourth proportional to 10,286.82, 15,420.33 and 6,779.52 is: 10,162.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.82 : 15,420.33 = 6,779.52 : x
  2. Step 2: Convert to fraction form
    10,286.82/15,420.33 = 6,779.52/x
  3. Step 3: Cross multiply
    10,286.82x = 15,420.33 × 6,779.52
  4. Step 4: Simplify right side
    10,286.82x = 104,542,435.64
  5. Step 5: Solve for x
    x = 104,542,435.64/10,286.82
  6. Step 6: Final answer
    x = 10,162.76

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1.5x scale

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.