Home / 18,918.96-28,377.37-5,770.29

Finding the Fourth Proportional to 18,918.96, 28,377.37 and 5,770.29

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Solution

The fourth proportional to 18,918.96, 28,377.37 and 5,770.29 is: 8,655.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.96 : 28,377.37 = 5,770.29 : x
  2. Step 2: Convert to fraction form
    18,918.96/28,377.37 = 5,770.29/x
  3. Step 3: Cross multiply
    18,918.96x = 28,377.37 × 5,770.29
  4. Step 4: Simplify right side
    18,918.96x = 163,745,654.34
  5. Step 5: Solve for x
    x = 163,745,654.34/18,918.96
  6. Step 6: Final answer
    x = 8,655.11

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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.