Home / 18,140.68-27,218.01-7,055.19

Finding the Fourth Proportional to 18,140.68, 27,218.01 and 7,055.19

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Solution

The fourth proportional to 18,140.68, 27,218.01 and 7,055.19 is: 10,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.68 : 27,218.01 = 7,055.19 : x
  2. Step 2: Convert to fraction form
    18,140.68/27,218.01 = 7,055.19/x
  3. Step 3: Cross multiply
    18,140.68x = 27,218.01 × 7,055.19
  4. Step 4: Simplify right side
    18,140.68x = 192,028,231.97
  5. Step 5: Solve for x
    x = 192,028,231.97/18,140.68
  6. Step 6: Final answer
    x = 10,585.50

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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.