Home / 18,930.66-26,124.48-11,861.22

Finding the Fourth Proportional to 18,930.66, 26,124.48 and 11,861.22

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Solution

The fourth proportional to 18,930.66, 26,124.48 and 11,861.22 is: 16,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.66 : 26,124.48 = 11,861.22 : x
  2. Step 2: Convert to fraction form
    18,930.66/26,124.48 = 11,861.22/x
  3. Step 3: Cross multiply
    18,930.66x = 26,124.48 × 11,861.22
  4. Step 4: Simplify right side
    18,930.66x = 309,868,204.67
  5. Step 5: Solve for x
    x = 309,868,204.67/18,930.66
  6. Step 6: Final answer
    x = 16,368.59

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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.