Home / 18,877.33-28,316.09-5,729.81

Finding the Fourth Proportional to 18,877.33, 28,316.09 and 5,729.81

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Solution

The fourth proportional to 18,877.33, 28,316.09 and 5,729.81 is: 8,594.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.33 : 28,316.09 = 5,729.81 : x
  2. Step 2: Convert to fraction form
    18,877.33/28,316.09 = 5,729.81/x
  3. Step 3: Cross multiply
    18,877.33x = 28,316.09 × 5,729.81
  4. Step 4: Simplify right side
    18,877.33x = 162,245,857.78
  5. Step 5: Solve for x
    x = 162,245,857.78/18,877.33
  6. Step 6: Final answer
    x = 8,594.75

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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.