Home / 15,076.90-20,805.33-8,362

Finding the Fourth Proportional to 15,076.90, 20,805.33 and 8,362

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Solution

The fourth proportional to 15,076.90, 20,805.33 and 8,362 is: 11,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.90 : 20,805.33 = 8,362 : x
  2. Step 2: Convert to fraction form
    15,076.90/20,805.33 = 8,362/x
  3. Step 3: Cross multiply
    15,076.90x = 20,805.33 × 8,362
  4. Step 4: Simplify right side
    15,076.90x = 173,974,169.46
  5. Step 5: Solve for x
    x = 173,974,169.46/15,076.90
  6. Step 6: Final answer
    x = 11,539.12

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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.