Home / 13,814.52-20,720.85-5,917.02

Finding the Fourth Proportional to 13,814.52, 20,720.85 and 5,917.02

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Solution

The fourth proportional to 13,814.52, 20,720.85 and 5,917.02 is: 8,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.52 : 20,720.85 = 5,917.02 : x
  2. Step 2: Convert to fraction form
    13,814.52/20,720.85 = 5,917.02/x
  3. Step 3: Cross multiply
    13,814.52x = 20,720.85 × 5,917.02
  4. Step 4: Simplify right side
    13,814.52x = 122,605,683.87
  5. Step 5: Solve for x
    x = 122,605,683.87/13,814.52
  6. Step 6: Final answer
    x = 8,875.13

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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.