Home / 13,339.74-20,010.77-3,479.03

Finding the Fourth Proportional to 13,339.74, 20,010.77 and 3,479.03

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Solution

The fourth proportional to 13,339.74, 20,010.77 and 3,479.03 is: 5,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.74 : 20,010.77 = 3,479.03 : x
  2. Step 2: Convert to fraction form
    13,339.74/20,010.77 = 3,479.03/x
  3. Step 3: Cross multiply
    13,339.74x = 20,010.77 × 3,479.03
  4. Step 4: Simplify right side
    13,339.74x = 69,617,951.70
  5. Step 5: Solve for x
    x = 69,617,951.70/13,339.74
  6. Step 6: Final answer
    x = 5,218.84

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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.