Home / 8,317.20-11,479.67-5,485.08

Finding the Fourth Proportional to 8,317.20, 11,479.67 and 5,485.08

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Solution

The fourth proportional to 8,317.20, 11,479.67 and 5,485.08 is: 7,570.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.20 : 11,479.67 = 5,485.08 : x
  2. Step 2: Convert to fraction form
    8,317.20/11,479.67 = 5,485.08/x
  3. Step 3: Cross multiply
    8,317.20x = 11,479.67 × 5,485.08
  4. Step 4: Simplify right side
    8,317.20x = 62,966,880.90
  5. Step 5: Solve for x
    x = 62,966,880.90/8,317.20
  6. Step 6: Final answer
    x = 7,570.68

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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.