Home / 6,501.30-9,750.96-2,118.78

Finding the Fourth Proportional to 6,501.30, 9,750.96 and 2,118.78

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Solution

The fourth proportional to 6,501.30, 9,750.96 and 2,118.78 is: 3,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,501.30 : 9,750.96 = 2,118.78 : x
  2. Step 2: Convert to fraction form
    6,501.30/9,750.96 = 2,118.78/x
  3. Step 3: Cross multiply
    6,501.30x = 9,750.96 × 2,118.78
  4. Step 4: Simplify right side
    6,501.30x = 20,660,139.03
  5. Step 5: Solve for x
    x = 20,660,139.03/6,501.30
  6. Step 6: Final answer
    x = 3,177.85

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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.