Home / 13,339.35-20,009.07-3,478.61

Finding the Fourth Proportional to 13,339.35, 20,009.07 and 3,478.61

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Solution

The fourth proportional to 13,339.35, 20,009.07 and 3,478.61 is: 5,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.35 : 20,009.07 = 3,478.61 : x
  2. Step 2: Convert to fraction form
    13,339.35/20,009.07 = 3,478.61/x
  3. Step 3: Cross multiply
    13,339.35x = 20,009.07 × 3,478.61
  4. Step 4: Simplify right side
    13,339.35x = 69,603,801.02
  5. Step 5: Solve for x
    x = 69,603,801.02/13,339.35
  6. Step 6: Final answer
    x = 5,217.93

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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.