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Finding the Fourth Proportional to 18,146.12, 27,220.90 and 7,053.67

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Solution

The fourth proportional to 18,146.12, 27,220.90 and 7,053.67 is: 10,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.12 : 27,220.90 = 7,053.67 : x
  2. Step 2: Convert to fraction form
    18,146.12/27,220.90 = 7,053.67/x
  3. Step 3: Cross multiply
    18,146.12x = 27,220.90 × 7,053.67
  4. Step 4: Simplify right side
    18,146.12x = 192,007,245.70
  5. Step 5: Solve for x
    x = 192,007,245.70/18,146.12
  6. Step 6: Final answer
    x = 10,581.17

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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.