Home / 19,867.46-27,409.23-12,798

Finding the Fourth Proportional to 19,867.46, 27,409.23 and 12,798

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Solution

The fourth proportional to 19,867.46, 27,409.23 and 12,798 is: 17,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.46 : 27,409.23 = 12,798 : x
  2. Step 2: Convert to fraction form
    19,867.46/27,409.23 = 12,798/x
  3. Step 3: Cross multiply
    19,867.46x = 27,409.23 × 12,798
  4. Step 4: Simplify right side
    19,867.46x = 350,783,325.54
  5. Step 5: Solve for x
    x = 350,783,325.54/19,867.46
  6. Step 6: Final answer
    x = 17,656.18

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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.