Home / 18,218.79-27,329.76-5,071.32

Finding the Fourth Proportional to 18,218.79, 27,329.76 and 5,071.32

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Solution

The fourth proportional to 18,218.79, 27,329.76 and 5,071.32 is: 7,607.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.79 : 27,329.76 = 5,071.32 : x
  2. Step 2: Convert to fraction form
    18,218.79/27,329.76 = 5,071.32/x
  3. Step 3: Cross multiply
    18,218.79x = 27,329.76 × 5,071.32
  4. Step 4: Simplify right side
    18,218.79x = 138,597,958.48
  5. Step 5: Solve for x
    x = 138,597,958.48/18,218.79
  6. Step 6: Final answer
    x = 7,607.42

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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.