Home / 11,031.36-16,531.20-8,554.56

Finding the Fourth Proportional to 11,031.36, 16,531.20 and 8,554.56

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Solution

The fourth proportional to 11,031.36, 16,531.20 and 8,554.56 is: 12,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.36 : 16,531.20 = 8,554.56 : x
  2. Step 2: Convert to fraction form
    11,031.36/16,531.20 = 8,554.56/x
  3. Step 3: Cross multiply
    11,031.36x = 16,531.20 × 8,554.56
  4. Step 4: Simplify right side
    11,031.36x = 141,417,142.27
  5. Step 5: Solve for x
    x = 141,417,142.27/11,031.36
  6. Step 6: Final answer
    x = 12,819.56

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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.