Home / 11,031.32-16,530.78-8,696.90

Finding the Fourth Proportional to 11,031.32, 16,530.78 and 8,696.90

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Solution

The fourth proportional to 11,031.32, 16,530.78 and 8,696.90 is: 13,032.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.32 : 16,530.78 = 8,696.90 : x
  2. Step 2: Convert to fraction form
    11,031.32/16,530.78 = 8,696.90/x
  3. Step 3: Cross multiply
    11,031.32x = 16,530.78 × 8,696.90
  4. Step 4: Simplify right side
    11,031.32x = 143,766,540.58
  5. Step 5: Solve for x
    x = 143,766,540.58/11,031.32
  6. Step 6: Final answer
    x = 13,032.58

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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.