Home / 18,309.12-27,463.48-13,893.90

Finding the Fourth Proportional to 18,309.12, 27,463.48 and 13,893.90

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Solution

The fourth proportional to 18,309.12, 27,463.48 and 13,893.90 is: 20,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.12 : 27,463.48 = 13,893.90 : x
  2. Step 2: Convert to fraction form
    18,309.12/27,463.48 = 13,893.90/x
  3. Step 3: Cross multiply
    18,309.12x = 27,463.48 × 13,893.90
  4. Step 4: Simplify right side
    18,309.12x = 381,574,707.05
  5. Step 5: Solve for x
    x = 381,574,707.05/18,309.12
  6. Step 6: Final answer
    x = 20,840.69

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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.