Home / 7,947.68-11,913.12-3,567.20

Finding the Fourth Proportional to 7,947.68, 11,913.12 and 3,567.20

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Solution

The fourth proportional to 7,947.68, 11,913.12 and 3,567.20 is: 5,347.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.68 : 11,913.12 = 3,567.20 : x
  2. Step 2: Convert to fraction form
    7,947.68/11,913.12 = 3,567.20/x
  3. Step 3: Cross multiply
    7,947.68x = 11,913.12 × 3,567.20
  4. Step 4: Simplify right side
    7,947.68x = 42,496,481.66
  5. Step 5: Solve for x
    x = 42,496,481.66/7,947.68
  6. Step 6: Final answer
    x = 5,347.03

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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.