Home / 11,810.05-16,294.60-8,220.98

Finding the Fourth Proportional to 11,810.05, 16,294.60 and 8,220.98

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Solution

The fourth proportional to 11,810.05, 16,294.60 and 8,220.98 is: 11,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.05 : 16,294.60 = 8,220.98 : x
  2. Step 2: Convert to fraction form
    11,810.05/16,294.60 = 8,220.98/x
  3. Step 3: Cross multiply
    11,810.05x = 16,294.60 × 8,220.98
  4. Step 4: Simplify right side
    11,810.05x = 133,957,540.06
  5. Step 5: Solve for x
    x = 133,957,540.06/11,810.05
  6. Step 6: Final answer
    x = 11,342.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.