Home / 11,107.49-15,326.91-6,328.04

Finding the Fourth Proportional to 11,107.49, 15,326.91 and 6,328.04

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Solution

The fourth proportional to 11,107.49, 15,326.91 and 6,328.04 is: 8,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.49 : 15,326.91 = 6,328.04 : x
  2. Step 2: Convert to fraction form
    11,107.49/15,326.91 = 6,328.04/x
  3. Step 3: Cross multiply
    11,107.49x = 15,326.91 × 6,328.04
  4. Step 4: Simplify right side
    11,107.49x = 96,989,299.56
  5. Step 5: Solve for x
    x = 96,989,299.56/11,107.49
  6. Step 6: Final answer
    x = 8,731.88

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1.5x scale

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.