Home / 18,688.82-28,028.37-5,537.66

Finding the Fourth Proportional to 18,688.82, 28,028.37 and 5,537.66

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Solution

The fourth proportional to 18,688.82, 28,028.37 and 5,537.66 is: 8,305.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.82 : 28,028.37 = 5,537.66 : x
  2. Step 2: Convert to fraction form
    18,688.82/28,028.37 = 5,537.66/x
  3. Step 3: Cross multiply
    18,688.82x = 28,028.37 × 5,537.66
  4. Step 4: Simplify right side
    18,688.82x = 155,211,583.41
  5. Step 5: Solve for x
    x = 155,211,583.41/18,688.82
  6. Step 6: Final answer
    x = 8,305.05

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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.