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Finding the Fourth Proportional to 7,424.65, 10,248.69 and 5,065.12

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Solution

The fourth proportional to 7,424.65, 10,248.69 and 5,065.12 is: 6,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.65 : 10,248.69 = 5,065.12 : x
  2. Step 2: Convert to fraction form
    7,424.65/10,248.69 = 5,065.12/x
  3. Step 3: Cross multiply
    7,424.65x = 10,248.69 × 5,065.12
  4. Step 4: Simplify right side
    7,424.65x = 51,910,844.69
  5. Step 5: Solve for x
    x = 51,910,844.69/7,424.65
  6. Step 6: Final answer
    x = 6,991.69

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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.