Home / 9,581.39-13,217.78-6,396.17

Finding the Fourth Proportional to 9,581.39, 13,217.78 and 6,396.17

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Solution

The fourth proportional to 9,581.39, 13,217.78 and 6,396.17 is: 8,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,581.39 : 13,217.78 = 6,396.17 : x
  2. Step 2: Convert to fraction form
    9,581.39/13,217.78 = 6,396.17/x
  3. Step 3: Cross multiply
    9,581.39x = 13,217.78 × 6,396.17
  4. Step 4: Simplify right side
    9,581.39x = 84,543,117.80
  5. Step 5: Solve for x
    x = 84,543,117.80/9,581.39
  6. Step 6: Final answer
    x = 8,823.68

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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.