Home / 13,401.18-20,080.71-6,818.31

Finding the Fourth Proportional to 13,401.18, 20,080.71 and 6,818.31

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Solution

The fourth proportional to 13,401.18, 20,080.71 and 6,818.31 is: 10,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.18 : 20,080.71 = 6,818.31 : x
  2. Step 2: Convert to fraction form
    13,401.18/20,080.71 = 6,818.31/x
  3. Step 3: Cross multiply
    13,401.18x = 20,080.71 × 6,818.31
  4. Step 4: Simplify right side
    13,401.18x = 136,916,505.80
  5. Step 5: Solve for x
    x = 136,916,505.80/13,401.18
  6. Step 6: Final answer
    x = 10,216.75

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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.