Home / 6,609.47-9,121.35-3,956.36

Finding the Fourth Proportional to 6,609.47, 9,121.35 and 3,956.36

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Solution

The fourth proportional to 6,609.47, 9,121.35 and 3,956.36 is: 5,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.47 : 9,121.35 = 3,956.36 : x
  2. Step 2: Convert to fraction form
    6,609.47/9,121.35 = 3,956.36/x
  3. Step 3: Cross multiply
    6,609.47x = 9,121.35 × 3,956.36
  4. Step 4: Simplify right side
    6,609.47x = 36,087,344.29
  5. Step 5: Solve for x
    x = 36,087,344.29/6,609.47
  6. Step 6: Final answer
    x = 5,459.95

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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.