Home / 11,213.08-16,778.10-7,019.68

Finding the Fourth Proportional to 11,213.08, 16,778.10 and 7,019.68

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Solution

The fourth proportional to 11,213.08, 16,778.10 and 7,019.68 is: 10,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.08 : 16,778.10 = 7,019.68 : x
  2. Step 2: Convert to fraction form
    11,213.08/16,778.10 = 7,019.68/x
  3. Step 3: Cross multiply
    11,213.08x = 16,778.10 × 7,019.68
  4. Step 4: Simplify right side
    11,213.08x = 117,776,893.01
  5. Step 5: Solve for x
    x = 117,776,893.01/11,213.08
  6. Step 6: Final answer
    x = 10,503.53

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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.