Home / 13,066.17-18,023.49-12,191.37

Finding the Fourth Proportional to 13,066.17, 18,023.49 and 12,191.37

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Solution

The fourth proportional to 13,066.17, 18,023.49 and 12,191.37 is: 16,816.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.17 : 18,023.49 = 12,191.37 : x
  2. Step 2: Convert to fraction form
    13,066.17/18,023.49 = 12,191.37/x
  3. Step 3: Cross multiply
    13,066.17x = 18,023.49 × 12,191.37
  4. Step 4: Simplify right side
    13,066.17x = 219,731,035.28
  5. Step 5: Solve for x
    x = 219,731,035.28/13,066.17
  6. Step 6: Final answer
    x = 16,816.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.