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Finding the Fourth Proportional to 11,870.55, 17,800.97 and 4,849.47

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Solution

The fourth proportional to 11,870.55, 17,800.97 and 4,849.47 is: 7,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.55 : 17,800.97 = 4,849.47 : x
  2. Step 2: Convert to fraction form
    11,870.55/17,800.97 = 4,849.47/x
  3. Step 3: Cross multiply
    11,870.55x = 17,800.97 × 4,849.47
  4. Step 4: Simplify right side
    11,870.55x = 86,325,245.74
  5. Step 5: Solve for x
    x = 86,325,245.74/11,870.55
  6. Step 6: Final answer
    x = 7,272.22

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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.