Home / 18,251.75-27,373.44-5,105.05

Finding the Fourth Proportional to 18,251.75, 27,373.44 and 5,105.05

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Solution

The fourth proportional to 18,251.75, 27,373.44 and 5,105.05 is: 7,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.75 : 27,373.44 = 5,105.05 : x
  2. Step 2: Convert to fraction form
    18,251.75/27,373.44 = 5,105.05/x
  3. Step 3: Cross multiply
    18,251.75x = 27,373.44 × 5,105.05
  4. Step 4: Simplify right side
    18,251.75x = 139,742,779.87
  5. Step 5: Solve for x
    x = 139,742,779.87/18,251.75
  6. Step 6: Final answer
    x = 7,656.40

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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.