Home / 18,693.96-28,081.66-11,301.90

Finding the Fourth Proportional to 18,693.96, 28,081.66 and 11,301.90

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Solution

The fourth proportional to 18,693.96, 28,081.66 and 11,301.90 is: 16,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.96 : 28,081.66 = 11,301.90 : x
  2. Step 2: Convert to fraction form
    18,693.96/28,081.66 = 11,301.90/x
  3. Step 3: Cross multiply
    18,693.96x = 28,081.66 × 11,301.90
  4. Step 4: Simplify right side
    18,693.96x = 317,376,113.15
  5. Step 5: Solve for x
    x = 317,376,113.15/18,693.96
  6. Step 6: Final answer
    x = 16,977.47

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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.