Home / 7,170.62-9,903.84-6,540.05

Finding the Fourth Proportional to 7,170.62, 9,903.84 and 6,540.05

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Solution

The fourth proportional to 7,170.62, 9,903.84 and 6,540.05 is: 9,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.62 : 9,903.84 = 6,540.05 : x
  2. Step 2: Convert to fraction form
    7,170.62/9,903.84 = 6,540.05/x
  3. Step 3: Cross multiply
    7,170.62x = 9,903.84 × 6,540.05
  4. Step 4: Simplify right side
    7,170.62x = 64,771,608.79
  5. Step 5: Solve for x
    x = 64,771,608.79/7,170.62
  6. Step 6: Final answer
    x = 9,032.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.