Home / 13,816.25-20,707.05-5,909.49

Finding the Fourth Proportional to 13,816.25, 20,707.05 and 5,909.49

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Solution

The fourth proportional to 13,816.25, 20,707.05 and 5,909.49 is: 8,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.25 : 20,707.05 = 5,909.49 : x
  2. Step 2: Convert to fraction form
    13,816.25/20,707.05 = 5,909.49/x
  3. Step 3: Cross multiply
    13,816.25x = 20,707.05 × 5,909.49
  4. Step 4: Simplify right side
    13,816.25x = 122,368,090.13
  5. Step 5: Solve for x
    x = 122,368,090.13/13,816.25
  6. Step 6: Final answer
    x = 8,856.82

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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.