Home / 11,389.84-15,719.54-6,676

Finding the Fourth Proportional to 11,389.84, 15,719.54 and 6,676

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Solution

The fourth proportional to 11,389.84, 15,719.54 and 6,676 is: 9,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.84 : 15,719.54 = 6,676 : x
  2. Step 2: Convert to fraction form
    11,389.84/15,719.54 = 6,676/x
  3. Step 3: Cross multiply
    11,389.84x = 15,719.54 × 6,676
  4. Step 4: Simplify right side
    11,389.84x = 104,943,649.04
  5. Step 5: Solve for x
    x = 104,943,649.04/11,389.84
  6. Step 6: Final answer
    x = 9,213.79

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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.