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Finding the Fourth Proportional to 8,316.79, 11,479.10 and 5,484.68

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Solution

The fourth proportional to 8,316.79, 11,479.10 and 5,484.68 is: 7,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.79 : 11,479.10 = 5,484.68 : x
  2. Step 2: Convert to fraction form
    8,316.79/11,479.10 = 5,484.68/x
  3. Step 3: Cross multiply
    8,316.79x = 11,479.10 × 5,484.68
  4. Step 4: Simplify right side
    8,316.79x = 62,959,105.37
  5. Step 5: Solve for x
    x = 62,959,105.37/8,316.79
  6. Step 6: Final answer
    x = 7,570.12

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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.