Home / 10,406.88-15,608.40-3,479.52

Finding the Fourth Proportional to 10,406.88, 15,608.40 and 3,479.52

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Solution

The fourth proportional to 10,406.88, 15,608.40 and 3,479.52 is: 5,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.88 : 15,608.40 = 3,479.52 : x
  2. Step 2: Convert to fraction form
    10,406.88/15,608.40 = 3,479.52/x
  3. Step 3: Cross multiply
    10,406.88x = 15,608.40 × 3,479.52
  4. Step 4: Simplify right side
    10,406.88x = 54,309,739.97
  5. Step 5: Solve for x
    x = 54,309,739.97/10,406.88
  6. Step 6: Final answer
    x = 5,218.64

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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.