Home / 18,187.09-27,280.64-5,039.46

Finding the Fourth Proportional to 18,187.09, 27,280.64 and 5,039.46

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Solution

The fourth proportional to 18,187.09, 27,280.64 and 5,039.46 is: 7,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.09 : 27,280.64 = 5,039.46 : x
  2. Step 2: Convert to fraction form
    18,187.09/27,280.64 = 5,039.46/x
  3. Step 3: Cross multiply
    18,187.09x = 27,280.64 × 5,039.46
  4. Step 4: Simplify right side
    18,187.09x = 137,479,706.65
  5. Step 5: Solve for x
    x = 137,479,706.65/18,187.09
  6. Step 6: Final answer
    x = 7,559.19

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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.