Home / 13,617.48-20,426.22-11,906.76

Finding the Fourth Proportional to 13,617.48, 20,426.22 and 11,906.76

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Solution

The fourth proportional to 13,617.48, 20,426.22 and 11,906.76 is: 17,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.48 : 20,426.22 = 11,906.76 : x
  2. Step 2: Convert to fraction form
    13,617.48/20,426.22 = 11,906.76/x
  3. Step 3: Cross multiply
    13,617.48x = 20,426.22 × 11,906.76
  4. Step 4: Simplify right side
    13,617.48x = 243,210,099.25
  5. Step 5: Solve for x
    x = 243,210,099.25/13,617.48
  6. Step 6: Final answer
    x = 17,860.14

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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.