Home / 12,636.30-18,948.96-6,711.88

Finding the Fourth Proportional to 12,636.30, 18,948.96 and 6,711.88

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Solution

The fourth proportional to 12,636.30, 18,948.96 and 6,711.88 is: 10,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.30 : 18,948.96 = 6,711.88 : x
  2. Step 2: Convert to fraction form
    12,636.30/18,948.96 = 6,711.88/x
  3. Step 3: Cross multiply
    12,636.30x = 18,948.96 × 6,711.88
  4. Step 4: Simplify right side
    12,636.30x = 127,183,112.09
  5. Step 5: Solve for x
    x = 127,183,112.09/12,636.30
  6. Step 6: Final answer
    x = 10,064.90

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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.