Home / 13,999.38-20,998.91-5,677.41

Finding the Fourth Proportional to 13,999.38, 20,998.91 and 5,677.41

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Solution

The fourth proportional to 13,999.38, 20,998.91 and 5,677.41 is: 8,516.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.38 : 20,998.91 = 5,677.41 : x
  2. Step 2: Convert to fraction form
    13,999.38/20,998.91 = 5,677.41/x
  3. Step 3: Cross multiply
    13,999.38x = 20,998.91 × 5,677.41
  4. Step 4: Simplify right side
    13,999.38x = 119,219,393.24
  5. Step 5: Solve for x
    x = 119,219,393.24/13,999.38
  6. Step 6: Final answer
    x = 8,516.05

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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.