Home / 13,899.68-20,854.32-8,699.36

Finding the Fourth Proportional to 13,899.68, 20,854.32 and 8,699.36

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Solution

The fourth proportional to 13,899.68, 20,854.32 and 8,699.36 is: 13,052.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.68 : 20,854.32 = 8,699.36 : x
  2. Step 2: Convert to fraction form
    13,899.68/20,854.32 = 8,699.36/x
  3. Step 3: Cross multiply
    13,899.68x = 20,854.32 × 8,699.36
  4. Step 4: Simplify right side
    13,899.68x = 181,419,237.24
  5. Step 5: Solve for x
    x = 181,419,237.24/13,899.68
  6. Step 6: Final answer
    x = 13,052.04

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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.