Home / 18,863.19-28,297.71-5,712.44

Finding the Fourth Proportional to 18,863.19, 28,297.71 and 5,712.44

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Solution

The fourth proportional to 18,863.19, 28,297.71 and 5,712.44 is: 8,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.19 : 28,297.71 = 5,712.44 : x
  2. Step 2: Convert to fraction form
    18,863.19/28,297.71 = 5,712.44/x
  3. Step 3: Cross multiply
    18,863.19x = 28,297.71 × 5,712.44
  4. Step 4: Simplify right side
    18,863.19x = 161,648,829.02
  5. Step 5: Solve for x
    x = 161,648,829.02/18,863.19
  6. Step 6: Final answer
    x = 8,569.54

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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.