Home / 11,556.19-15,947.55-6,520.42

Finding the Fourth Proportional to 11,556.19, 15,947.55 and 6,520.42

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Solution

The fourth proportional to 11,556.19, 15,947.55 and 6,520.42 is: 8,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.19 : 15,947.55 = 6,520.42 : x
  2. Step 2: Convert to fraction form
    11,556.19/15,947.55 = 6,520.42/x
  3. Step 3: Cross multiply
    11,556.19x = 15,947.55 × 6,520.42
  4. Step 4: Simplify right side
    11,556.19x = 103,984,723.97
  5. Step 5: Solve for x
    x = 103,984,723.97/11,556.19
  6. Step 6: Final answer
    x = 8,998.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.