Home / 11,213.10-16,819.65-11,148.30

Finding the Fourth Proportional to 11,213.10, 16,819.65 and 11,148.30

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Solution

The fourth proportional to 11,213.10, 16,819.65 and 11,148.30 is: 16,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.10 : 16,819.65 = 11,148.30 : x
  2. Step 2: Convert to fraction form
    11,213.10/16,819.65 = 11,148.30/x
  3. Step 3: Cross multiply
    11,213.10x = 16,819.65 × 11,148.30
  4. Step 4: Simplify right side
    11,213.10x = 187,510,504.10
  5. Step 5: Solve for x
    x = 187,510,504.10/11,213.10
  6. Step 6: Final answer
    x = 16,722.45

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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.