Home / 11,031.78-16,525.38-8,814.36

Finding the Fourth Proportional to 11,031.78, 16,525.38 and 8,814.36

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Solution

The fourth proportional to 11,031.78, 16,525.38 and 8,814.36 is: 13,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.78 : 16,525.38 = 8,814.36 : x
  2. Step 2: Convert to fraction form
    11,031.78/16,525.38 = 8,814.36/x
  3. Step 3: Cross multiply
    11,031.78x = 16,525.38 × 8,814.36
  4. Step 4: Simplify right side
    11,031.78x = 145,660,648.46
  5. Step 5: Solve for x
    x = 145,660,648.46/11,031.78
  6. Step 6: Final answer
    x = 13,203.73

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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.