Home / 10,886.72-16,331.04-3,959.36

Finding the Fourth Proportional to 10,886.72, 16,331.04 and 3,959.36

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Solution

The fourth proportional to 10,886.72, 16,331.04 and 3,959.36 is: 5,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.72 : 16,331.04 = 3,959.36 : x
  2. Step 2: Convert to fraction form
    10,886.72/16,331.04 = 3,959.36/x
  3. Step 3: Cross multiply
    10,886.72x = 16,331.04 × 3,959.36
  4. Step 4: Simplify right side
    10,886.72x = 64,660,466.53
  5. Step 5: Solve for x
    x = 64,660,466.53/10,886.72
  6. Step 6: Final answer
    x = 5,939.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.