Home / 13,143.82-19,718.54-4,823.90

Finding the Fourth Proportional to 13,143.82, 19,718.54 and 4,823.90

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Solution

The fourth proportional to 13,143.82, 19,718.54 and 4,823.90 is: 7,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.82 : 19,718.54 = 4,823.90 : x
  2. Step 2: Convert to fraction form
    13,143.82/19,718.54 = 4,823.90/x
  3. Step 3: Cross multiply
    13,143.82x = 19,718.54 × 4,823.90
  4. Step 4: Simplify right side
    13,143.82x = 95,120,345.34
  5. Step 5: Solve for x
    x = 95,120,345.34/13,143.82
  6. Step 6: Final answer
    x = 7,236.89

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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.