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Finding the Fourth Proportional to 10,080.72, 13,911.75 and 5,605.74

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Solution

The fourth proportional to 10,080.72, 13,911.75 and 5,605.74 is: 7,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.72 : 13,911.75 = 5,605.74 : x
  2. Step 2: Convert to fraction form
    10,080.72/13,911.75 = 5,605.74/x
  3. Step 3: Cross multiply
    10,080.72x = 13,911.75 × 5,605.74
  4. Step 4: Simplify right side
    10,080.72x = 77,985,653.45
  5. Step 5: Solve for x
    x = 77,985,653.45/10,080.72
  6. Step 6: Final answer
    x = 7,736.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.