Home / 13,385.50-20,076.66-3,525.58

Finding the Fourth Proportional to 13,385.50, 20,076.66 and 3,525.58

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Solution

The fourth proportional to 13,385.50, 20,076.66 and 3,525.58 is: 5,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.50 : 20,076.66 = 3,525.58 : x
  2. Step 2: Convert to fraction form
    13,385.50/20,076.66 = 3,525.58/x
  3. Step 3: Cross multiply
    13,385.50x = 20,076.66 × 3,525.58
  4. Step 4: Simplify right side
    13,385.50x = 70,781,870.96
  5. Step 5: Solve for x
    x = 70,781,870.96/13,385.50
  6. Step 6: Final answer
    x = 5,287.95

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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.