Home / 11,556.12-15,947.43-6,520.34

Finding the Fourth Proportional to 11,556.12, 15,947.43 and 6,520.34

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Solution

The fourth proportional to 11,556.12, 15,947.43 and 6,520.34 is: 8,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.12 : 15,947.43 = 6,520.34 : x
  2. Step 2: Convert to fraction form
    11,556.12/15,947.43 = 6,520.34/x
  3. Step 3: Cross multiply
    11,556.12x = 15,947.43 × 6,520.34
  4. Step 4: Simplify right side
    11,556.12x = 103,982,585.99
  5. Step 5: Solve for x
    x = 103,982,585.99/11,556.12
  6. Step 6: Final answer
    x = 8,998.05

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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.