Home / 12,486.04-18,731.85-4,694.92

Finding the Fourth Proportional to 12,486.04, 18,731.85 and 4,694.92

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Solution

The fourth proportional to 12,486.04, 18,731.85 and 4,694.92 is: 7,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.04 : 18,731.85 = 4,694.92 : x
  2. Step 2: Convert to fraction form
    12,486.04/18,731.85 = 4,694.92/x
  3. Step 3: Cross multiply
    12,486.04x = 18,731.85 × 4,694.92
  4. Step 4: Simplify right side
    12,486.04x = 87,944,537.20
  5. Step 5: Solve for x
    x = 87,944,537.20/12,486.04
  6. Step 6: Final answer
    x = 7,043.43

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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.