Home / 9,143.48-13,715.21-2,217.98

Finding the Fourth Proportional to 9,143.48, 13,715.21 and 2,217.98

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Solution

The fourth proportional to 9,143.48, 13,715.21 and 2,217.98 is: 3,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.48 : 13,715.21 = 2,217.98 : x
  2. Step 2: Convert to fraction form
    9,143.48/13,715.21 = 2,217.98/x
  3. Step 3: Cross multiply
    9,143.48x = 13,715.21 × 2,217.98
  4. Step 4: Simplify right side
    9,143.48x = 30,419,981.81
  5. Step 5: Solve for x
    x = 30,419,981.81/9,143.48
  6. Step 6: Final answer
    x = 3,326.96

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Double scale
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Similar ratio
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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.