Home / 18,257.85-27,386.45-5,110.02

Finding the Fourth Proportional to 18,257.85, 27,386.45 and 5,110.02

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Solution

The fourth proportional to 18,257.85, 27,386.45 and 5,110.02 is: 7,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.85 : 27,386.45 = 5,110.02 : x
  2. Step 2: Convert to fraction form
    18,257.85/27,386.45 = 5,110.02/x
  3. Step 3: Cross multiply
    18,257.85x = 27,386.45 × 5,110.02
  4. Step 4: Simplify right side
    18,257.85x = 139,945,281.68
  5. Step 5: Solve for x
    x = 139,945,281.68/18,257.85
  6. Step 6: Final answer
    x = 7,664.94

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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.