Home / 18,828.96-28,209.01-8,815.33

Finding the Fourth Proportional to 18,828.96, 28,209.01 and 8,815.33

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Solution

The fourth proportional to 18,828.96, 28,209.01 and 8,815.33 is: 13,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.96 : 28,209.01 = 8,815.33 : x
  2. Step 2: Convert to fraction form
    18,828.96/28,209.01 = 8,815.33/x
  3. Step 3: Cross multiply
    18,828.96x = 28,209.01 × 8,815.33
  4. Step 4: Simplify right side
    18,828.96x = 248,671,732.12
  5. Step 5: Solve for x
    x = 248,671,732.12/18,828.96
  6. Step 6: Final answer
    x = 13,206.88

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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.