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Finding the Fourth Proportional to 18,570.84, 27,849.28 and 7,473.76

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Solution

The fourth proportional to 18,570.84, 27,849.28 and 7,473.76 is: 11,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.84 : 27,849.28 = 7,473.76 : x
  2. Step 2: Convert to fraction form
    18,570.84/27,849.28 = 7,473.76/x
  3. Step 3: Cross multiply
    18,570.84x = 27,849.28 × 7,473.76
  4. Step 4: Simplify right side
    18,570.84x = 208,138,834.89
  5. Step 5: Solve for x
    x = 208,138,834.89/18,570.84
  6. Step 6: Final answer
    x = 11,207.83

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