Home / 17,217.81-25,836.68-7,221.66

Finding the Fourth Proportional to 17,217.81, 25,836.68 and 7,221.66

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Solution

The fourth proportional to 17,217.81, 25,836.68 and 7,221.66 is: 10,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,217.81 : 25,836.68 = 7,221.66 : x
  2. Step 2: Convert to fraction form
    17,217.81/25,836.68 = 7,221.66/x
  3. Step 3: Cross multiply
    17,217.81x = 25,836.68 × 7,221.66
  4. Step 4: Simplify right side
    17,217.81x = 186,583,790.46
  5. Step 5: Solve for x
    x = 186,583,790.46/17,217.81
  6. Step 6: Final answer
    x = 10,836.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.