Home / 13,335.99-20,016.53-6,766.89

Finding the Fourth Proportional to 13,335.99, 20,016.53 and 6,766.89

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Solution

The fourth proportional to 13,335.99, 20,016.53 and 6,766.89 is: 10,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.99 : 20,016.53 = 6,766.89 : x
  2. Step 2: Convert to fraction form
    13,335.99/20,016.53 = 6,766.89/x
  3. Step 3: Cross multiply
    13,335.99x = 20,016.53 × 6,766.89
  4. Step 4: Simplify right side
    13,335.99x = 135,449,556.61
  5. Step 5: Solve for x
    x = 135,449,556.61/13,335.99
  6. Step 6: Final answer
    x = 10,156.70

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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.