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Finding the Fourth Proportional to 9,073.72, 12,515.34 and 8,330.14

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Solution

The fourth proportional to 9,073.72, 12,515.34 and 8,330.14 is: 11,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,073.72 : 12,515.34 = 8,330.14 : x
  2. Step 2: Convert to fraction form
    9,073.72/12,515.34 = 8,330.14/x
  3. Step 3: Cross multiply
    9,073.72x = 12,515.34 × 8,330.14
  4. Step 4: Simplify right side
    9,073.72x = 104,254,534.35
  5. Step 5: Solve for x
    x = 104,254,534.35/9,073.72
  6. Step 6: Final answer
    x = 11,489.72

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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.