Home / 18,813.66-28,225.20-13,277.82

Finding the Fourth Proportional to 18,813.66, 28,225.20 and 13,277.82

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Solution

The fourth proportional to 18,813.66, 28,225.20 and 13,277.82 is: 19,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.66 : 28,225.20 = 13,277.82 : x
  2. Step 2: Convert to fraction form
    18,813.66/28,225.20 = 13,277.82/x
  3. Step 3: Cross multiply
    18,813.66x = 28,225.20 × 13,277.82
  4. Step 4: Simplify right side
    18,813.66x = 374,769,125.06
  5. Step 5: Solve for x
    x = 374,769,125.06/18,813.66
  6. Step 6: Final answer
    x = 19,920.05

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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.