Home / 13,339.24-20,008.88-3,979.02

Finding the Fourth Proportional to 13,339.24, 20,008.88 and 3,979.02

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Solution

The fourth proportional to 13,339.24, 20,008.88 and 3,979.02 is: 5,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.24 : 20,008.88 = 3,979.02 : x
  2. Step 2: Convert to fraction form
    13,339.24/20,008.88 = 3,979.02/x
  3. Step 3: Cross multiply
    13,339.24x = 20,008.88 × 3,979.02
  4. Step 4: Simplify right side
    13,339.24x = 79,615,733.70
  5. Step 5: Solve for x
    x = 79,615,733.70/13,339.24
  6. Step 6: Final answer
    x = 5,968.54

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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.