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Finding the Fourth Proportional to 8,315.79, 11,477.72 and 5,483.67

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Solution

The fourth proportional to 8,315.79, 11,477.72 and 5,483.67 is: 7,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.79 : 11,477.72 = 5,483.67 : x
  2. Step 2: Convert to fraction form
    8,315.79/11,477.72 = 5,483.67/x
  3. Step 3: Cross multiply
    8,315.79x = 11,477.72 × 5,483.67
  4. Step 4: Simplify right side
    8,315.79x = 62,940,065.50
  5. Step 5: Solve for x
    x = 62,940,065.50/8,315.79
  6. Step 6: Final answer
    x = 7,568.74

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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.