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Finding the Fourth Proportional to 6,665.76, 9,991.62 and 2,503.08

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Solution

The fourth proportional to 6,665.76, 9,991.62 and 2,503.08 is: 3,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.76 : 9,991.62 = 2,503.08 : x
  2. Step 2: Convert to fraction form
    6,665.76/9,991.62 = 2,503.08/x
  3. Step 3: Cross multiply
    6,665.76x = 9,991.62 × 2,503.08
  4. Step 4: Simplify right side
    6,665.76x = 25,009,824.19
  5. Step 5: Solve for x
    x = 25,009,824.19/6,665.76
  6. Step 6: Final answer
    x = 3,751.98

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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.