Home / 18,732.33-28,106.60-8,878.59

Finding the Fourth Proportional to 18,732.33, 28,106.60 and 8,878.59

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Solution

The fourth proportional to 18,732.33, 28,106.60 and 8,878.59 is: 13,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.33 : 28,106.60 = 8,878.59 : x
  2. Step 2: Convert to fraction form
    18,732.33/28,106.60 = 8,878.59/x
  3. Step 3: Cross multiply
    18,732.33x = 28,106.60 × 8,878.59
  4. Step 4: Simplify right side
    18,732.33x = 249,546,933.30
  5. Step 5: Solve for x
    x = 249,546,933.30/18,732.33
  6. Step 6: Final answer
    x = 13,321.72

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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.