Home / 18,863.72-28,288.89-5,533.01

Finding the Fourth Proportional to 18,863.72, 28,288.89 and 5,533.01

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Solution

The fourth proportional to 18,863.72, 28,288.89 and 5,533.01 is: 8,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.72 : 28,288.89 = 5,533.01 : x
  2. Step 2: Convert to fraction form
    18,863.72/28,288.89 = 5,533.01/x
  3. Step 3: Cross multiply
    18,863.72x = 28,288.89 × 5,533.01
  4. Step 4: Simplify right side
    18,863.72x = 156,522,711.26
  5. Step 5: Solve for x
    x = 156,522,711.26/18,863.72
  6. Step 6: Final answer
    x = 8,297.55

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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.