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Finding the Fourth Proportional to 18,217.40, 27,330.90 and 6,529.40

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Solution

The fourth proportional to 18,217.40, 27,330.90 and 6,529.40 is: 9,795.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.40 : 27,330.90 = 6,529.40 : x
  2. Step 2: Convert to fraction form
    18,217.40/27,330.90 = 6,529.40/x
  3. Step 3: Cross multiply
    18,217.40x = 27,330.90 × 6,529.40
  4. Step 4: Simplify right side
    18,217.40x = 178,454,378.46
  5. Step 5: Solve for x
    x = 178,454,378.46/18,217.40
  6. Step 6: Final answer
    x = 9,795.82

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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.