Home / 6,786.72-10,140.83-5,385.45

Finding the Fourth Proportional to 6,786.72, 10,140.83 and 5,385.45

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Solution

The fourth proportional to 6,786.72, 10,140.83 and 5,385.45 is: 8,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.72 : 10,140.83 = 5,385.45 : x
  2. Step 2: Convert to fraction form
    6,786.72/10,140.83 = 5,385.45/x
  3. Step 3: Cross multiply
    6,786.72x = 10,140.83 × 5,385.45
  4. Step 4: Simplify right side
    6,786.72x = 54,612,932.92
  5. Step 5: Solve for x
    x = 54,612,932.92/6,786.72
  6. Step 6: Final answer
    x = 8,047.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.