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Finding the Fourth Proportional to 7,400.88, 10,214.12 and 4,747.32

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Solution

The fourth proportional to 7,400.88, 10,214.12 and 4,747.32 is: 6,551.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.88 : 10,214.12 = 4,747.32 : x
  2. Step 2: Convert to fraction form
    7,400.88/10,214.12 = 4,747.32/x
  3. Step 3: Cross multiply
    7,400.88x = 10,214.12 × 4,747.32
  4. Step 4: Simplify right side
    7,400.88x = 48,489,696.16
  5. Step 5: Solve for x
    x = 48,489,696.16/7,400.88
  6. Step 6: Final answer
    x = 6,551.88

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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.