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Finding the Fourth Proportional to 9,507.17, 13,119.92 and 5,315.42

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Solution

The fourth proportional to 9,507.17, 13,119.92 and 5,315.42 is: 7,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,507.17 : 13,119.92 = 5,315.42 : x
  2. Step 2: Convert to fraction form
    9,507.17/13,119.92 = 5,315.42/x
  3. Step 3: Cross multiply
    9,507.17x = 13,119.92 × 5,315.42
  4. Step 4: Simplify right side
    9,507.17x = 69,737,792.99
  5. Step 5: Solve for x
    x = 69,737,792.99/9,507.17
  6. Step 6: Final answer
    x = 7,335.29

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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.