Home / 11,439.40-15,786.54-6,963.34

Finding the Fourth Proportional to 11,439.40, 15,786.54 and 6,963.34

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Solution

The fourth proportional to 11,439.40, 15,786.54 and 6,963.34 is: 9,609.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.40 : 15,786.54 = 6,963.34 : x
  2. Step 2: Convert to fraction form
    11,439.40/15,786.54 = 6,963.34/x
  3. Step 3: Cross multiply
    11,439.40x = 15,786.54 × 6,963.34
  4. Step 4: Simplify right side
    11,439.40x = 109,927,045.44
  5. Step 5: Solve for x
    x = 109,927,045.44/11,439.40
  6. Step 6: Final answer
    x = 9,609.51

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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.