Home / 8,688.48-13,022.63-3,998.64

Finding the Fourth Proportional to 8,688.48, 13,022.63 and 3,998.64

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Solution

The fourth proportional to 8,688.48, 13,022.63 and 3,998.64 is: 5,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.48 : 13,022.63 = 3,998.64 : x
  2. Step 2: Convert to fraction form
    8,688.48/13,022.63 = 3,998.64/x
  3. Step 3: Cross multiply
    8,688.48x = 13,022.63 × 3,998.64
  4. Step 4: Simplify right side
    8,688.48x = 52,072,804.22
  5. Step 5: Solve for x
    x = 52,072,804.22/8,688.48
  6. Step 6: Final answer
    x = 5,993.32

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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.