Home / 6,767.80-10,137.30-5,615.80

Finding the Fourth Proportional to 6,767.80, 10,137.30 and 5,615.80

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Solution

The fourth proportional to 6,767.80, 10,137.30 and 5,615.80 is: 8,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,767.80 : 10,137.30 = 5,615.80 : x
  2. Step 2: Convert to fraction form
    6,767.80/10,137.30 = 5,615.80/x
  3. Step 3: Cross multiply
    6,767.80x = 10,137.30 × 5,615.80
  4. Step 4: Simplify right side
    6,767.80x = 56,929,049.34
  5. Step 5: Solve for x
    x = 56,929,049.34/6,767.80
  6. Step 6: Final answer
    x = 8,411.75

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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.