Home / 18,829.46-28,209.76-8,815.83

Finding the Fourth Proportional to 18,829.46, 28,209.76 and 8,815.83

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Solution

The fourth proportional to 18,829.46, 28,209.76 and 8,815.83 is: 13,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.46 : 28,209.76 = 8,815.83 : x
  2. Step 2: Convert to fraction form
    18,829.46/28,209.76 = 8,815.83/x
  3. Step 3: Cross multiply
    18,829.46x = 28,209.76 × 8,815.83
  4. Step 4: Simplify right side
    18,829.46x = 248,692,426.46
  5. Step 5: Solve for x
    x = 248,692,426.46/18,829.46
  6. Step 6: Final answer
    x = 13,207.63

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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.