Home / 18,770.22-28,155.31-8,637.58

Finding the Fourth Proportional to 18,770.22, 28,155.31 and 8,637.58

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Solution

The fourth proportional to 18,770.22, 28,155.31 and 8,637.58 is: 12,956.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.22 : 28,155.31 = 8,637.58 : x
  2. Step 2: Convert to fraction form
    18,770.22/28,155.31 = 8,637.58/x
  3. Step 3: Cross multiply
    18,770.22x = 28,155.31 × 8,637.58
  4. Step 4: Simplify right side
    18,770.22x = 243,193,650.57
  5. Step 5: Solve for x
    x = 243,193,650.57/18,770.22
  6. Step 6: Final answer
    x = 12,956.36

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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.