Home / 6,511.05-9,764.10-5,140.53

Finding the Fourth Proportional to 6,511.05, 9,764.10 and 5,140.53

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Solution

The fourth proportional to 6,511.05, 9,764.10 and 5,140.53 is: 7,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.05 : 9,764.10 = 5,140.53 : x
  2. Step 2: Convert to fraction form
    6,511.05/9,764.10 = 5,140.53/x
  3. Step 3: Cross multiply
    6,511.05x = 9,764.10 × 5,140.53
  4. Step 4: Simplify right side
    6,511.05x = 50,192,648.97
  5. Step 5: Solve for x
    x = 50,192,648.97/6,511.05
  6. Step 6: Final answer
    x = 7,708.84

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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.