Home / 15,747.16-21,731.19-8,673.83

Finding the Fourth Proportional to 15,747.16, 21,731.19 and 8,673.83

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Solution

The fourth proportional to 15,747.16, 21,731.19 and 8,673.83 is: 11,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.16 : 21,731.19 = 8,673.83 : x
  2. Step 2: Convert to fraction form
    15,747.16/21,731.19 = 8,673.83/x
  3. Step 3: Cross multiply
    15,747.16x = 21,731.19 × 8,673.83
  4. Step 4: Simplify right side
    15,747.16x = 188,492,647.76
  5. Step 5: Solve for x
    x = 188,492,647.76/15,747.16
  6. Step 6: Final answer
    x = 11,969.95

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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.