Home / 11,320.56-16,979.76-3,525.12

Finding the Fourth Proportional to 11,320.56, 16,979.76 and 3,525.12

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Solution

The fourth proportional to 11,320.56, 16,979.76 and 3,525.12 is: 5,287.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.56 : 16,979.76 = 3,525.12 : x
  2. Step 2: Convert to fraction form
    11,320.56/16,979.76 = 3,525.12/x
  3. Step 3: Cross multiply
    11,320.56x = 16,979.76 × 3,525.12
  4. Step 4: Simplify right side
    11,320.56x = 59,855,691.57
  5. Step 5: Solve for x
    x = 59,855,691.57/11,320.56
  6. Step 6: Final answer
    x = 5,287.34

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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.