Home / 16,815.12-25,239.08-12,829.11

Finding the Fourth Proportional to 16,815.12, 25,239.08 and 12,829.11

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Solution

The fourth proportional to 16,815.12, 25,239.08 and 12,829.11 is: 19,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.12 : 25,239.08 = 12,829.11 : x
  2. Step 2: Convert to fraction form
    16,815.12/25,239.08 = 12,829.11/x
  3. Step 3: Cross multiply
    16,815.12x = 25,239.08 × 12,829.11
  4. Step 4: Simplify right side
    16,815.12x = 323,794,933.62
  5. Step 5: Solve for x
    x = 323,794,933.62/16,815.12
  6. Step 6: Final answer
    x = 19,256.18

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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.