Home / 8,815.12-13,224.60-3,617.68

Finding the Fourth Proportional to 8,815.12, 13,224.60 and 3,617.68

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Solution

The fourth proportional to 8,815.12, 13,224.60 and 3,617.68 is: 5,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.12 : 13,224.60 = 3,617.68 : x
  2. Step 2: Convert to fraction form
    8,815.12/13,224.60 = 3,617.68/x
  3. Step 3: Cross multiply
    8,815.12x = 13,224.60 × 3,617.68
  4. Step 4: Simplify right side
    8,815.12x = 47,842,370.93
  5. Step 5: Solve for x
    x = 47,842,370.93/8,815.12
  6. Step 6: Final answer
    x = 5,427.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.