Home / 7,207.91-10,740.22-6,421.88

Finding the Fourth Proportional to 7,207.91, 10,740.22 and 6,421.88

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Solution

The fourth proportional to 7,207.91, 10,740.22 and 6,421.88 is: 9,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.91 : 10,740.22 = 6,421.88 : x
  2. Step 2: Convert to fraction form
    7,207.91/10,740.22 = 6,421.88/x
  3. Step 3: Cross multiply
    7,207.91x = 10,740.22 × 6,421.88
  4. Step 4: Simplify right side
    7,207.91x = 68,972,334.26
  5. Step 5: Solve for x
    x = 68,972,334.26/7,207.91
  6. Step 6: Final answer
    x = 9,568.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.