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Finding the Fourth Proportional to 9,002.90, 12,419.01 and 5,276.18

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Solution

The fourth proportional to 9,002.90, 12,419.01 and 5,276.18 is: 7,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,002.90 : 12,419.01 = 5,276.18 : x
  2. Step 2: Convert to fraction form
    9,002.90/12,419.01 = 5,276.18/x
  3. Step 3: Cross multiply
    9,002.90x = 12,419.01 × 5,276.18
  4. Step 4: Simplify right side
    9,002.90x = 65,524,932.18
  5. Step 5: Solve for x
    x = 65,524,932.18/9,002.90
  6. Step 6: Final answer
    x = 7,278.20

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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.