Home / 18,259.56-27,390.87-5,111.91

Finding the Fourth Proportional to 18,259.56, 27,390.87 and 5,111.91

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Solution

The fourth proportional to 18,259.56, 27,390.87 and 5,111.91 is: 7,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.56 : 27,390.87 = 5,111.91 : x
  2. Step 2: Convert to fraction form
    18,259.56/27,390.87 = 5,111.91/x
  3. Step 3: Cross multiply
    18,259.56x = 27,390.87 × 5,111.91
  4. Step 4: Simplify right side
    18,259.56x = 140,019,662.26
  5. Step 5: Solve for x
    x = 140,019,662.26/18,259.56
  6. Step 6: Final answer
    x = 7,668.29

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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.