Home / 7,507.80-10,319.27-6,618.42

Finding the Fourth Proportional to 7,507.80, 10,319.27 and 6,618.42

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Solution

The fourth proportional to 7,507.80, 10,319.27 and 6,618.42 is: 9,096.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,507.80 : 10,319.27 = 6,618.42 : x
  2. Step 2: Convert to fraction form
    7,507.80/10,319.27 = 6,618.42/x
  3. Step 3: Cross multiply
    7,507.80x = 10,319.27 × 6,618.42
  4. Step 4: Simplify right side
    7,507.80x = 68,297,229.86
  5. Step 5: Solve for x
    x = 68,297,229.86/7,507.80
  6. Step 6: Final answer
    x = 9,096.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.