Home / 18,829.08-28,209.20-8,815.46

Finding the Fourth Proportional to 18,829.08, 28,209.20 and 8,815.46

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Solution

The fourth proportional to 18,829.08, 28,209.20 and 8,815.46 is: 13,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.08 : 28,209.20 = 8,815.46 : x
  2. Step 2: Convert to fraction form
    18,829.08/28,209.20 = 8,815.46/x
  3. Step 3: Cross multiply
    18,829.08x = 28,209.20 × 8,815.46
  4. Step 4: Simplify right side
    18,829.08x = 248,676,889.11
  5. Step 5: Solve for x
    x = 248,676,889.11/18,829.08
  6. Step 6: Final answer
    x = 13,207.07

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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.