Home / 18,830.96-28,212.01-8,817.33

Finding the Fourth Proportional to 18,830.96, 28,212.01 and 8,817.33

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Solution

The fourth proportional to 18,830.96, 28,212.01 and 8,817.33 is: 13,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.96 : 28,212.01 = 8,817.33 : x
  2. Step 2: Convert to fraction form
    18,830.96/28,212.01 = 8,817.33/x
  3. Step 3: Cross multiply
    18,830.96x = 28,212.01 × 8,817.33
  4. Step 4: Simplify right side
    18,830.96x = 248,754,580.09
  5. Step 5: Solve for x
    x = 248,754,580.09/18,830.96
  6. Step 6: Final answer
    x = 13,209.88

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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.