Home / 13,340.09-20,009.41-6,766.10

Finding the Fourth Proportional to 13,340.09, 20,009.41 and 6,766.10

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Solution

The fourth proportional to 13,340.09, 20,009.41 and 6,766.10 is: 10,148.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.09 : 20,009.41 = 6,766.10 : x
  2. Step 2: Convert to fraction form
    13,340.09/20,009.41 = 6,766.10/x
  3. Step 3: Cross multiply
    13,340.09x = 20,009.41 × 6,766.10
  4. Step 4: Simplify right side
    13,340.09x = 135,385,714.80
  5. Step 5: Solve for x
    x = 135,385,714.80/13,340.09
  6. Step 6: Final answer
    x = 10,148.79

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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.