Home / 8,688.35-13,022.44-3,998.51

Finding the Fourth Proportional to 8,688.35, 13,022.44 and 3,998.51

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Solution

The fourth proportional to 8,688.35, 13,022.44 and 3,998.51 is: 5,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.35 : 13,022.44 = 3,998.51 : x
  2. Step 2: Convert to fraction form
    8,688.35/13,022.44 = 3,998.51/x
  3. Step 3: Cross multiply
    8,688.35x = 13,022.44 × 3,998.51
  4. Step 4: Simplify right side
    8,688.35x = 52,070,399.12
  5. Step 5: Solve for x
    x = 52,070,399.12/8,688.35
  6. Step 6: Final answer
    x = 5,993.13

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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.