Home / 18,257.64-27,386.46-5,111.95

Finding the Fourth Proportional to 18,257.64, 27,386.46 and 5,111.95

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Solution

The fourth proportional to 18,257.64, 27,386.46 and 5,111.95 is: 7,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.64 : 27,386.46 = 5,111.95 : x
  2. Step 2: Convert to fraction form
    18,257.64/27,386.46 = 5,111.95/x
  3. Step 3: Cross multiply
    18,257.64x = 27,386.46 × 5,111.95
  4. Step 4: Simplify right side
    18,257.64x = 139,998,214.20
  5. Step 5: Solve for x
    x = 139,998,214.20/18,257.64
  6. Step 6: Final answer
    x = 7,667.93

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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.