Home / 18,684.22-27,995.18-13,127.61

Finding the Fourth Proportional to 18,684.22, 27,995.18 and 13,127.61

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Solution

The fourth proportional to 18,684.22, 27,995.18 and 13,127.61 is: 19,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.22 : 27,995.18 = 13,127.61 : x
  2. Step 2: Convert to fraction form
    18,684.22/27,995.18 = 13,127.61/x
  3. Step 3: Cross multiply
    18,684.22x = 27,995.18 × 13,127.61
  4. Step 4: Simplify right side
    18,684.22x = 367,509,804.92
  5. Step 5: Solve for x
    x = 367,509,804.92/18,684.22
  6. Step 6: Final answer
    x = 19,669.53

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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.