Home / 7,029.80-10,515.90-6,338.60

Finding the Fourth Proportional to 7,029.80, 10,515.90 and 6,338.60

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Solution

The fourth proportional to 7,029.80, 10,515.90 and 6,338.60 is: 9,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,029.80 : 10,515.90 = 6,338.60 : x
  2. Step 2: Convert to fraction form
    7,029.80/10,515.90 = 6,338.60/x
  3. Step 3: Cross multiply
    7,029.80x = 10,515.90 × 6,338.60
  4. Step 4: Simplify right side
    7,029.80x = 66,656,083.74
  5. Step 5: Solve for x
    x = 66,656,083.74/7,029.80
  6. Step 6: Final answer
    x = 9,481.93

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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.