Home / 12,576.32-18,866.09-3,809.69

Finding the Fourth Proportional to 12,576.32, 18,866.09 and 3,809.69

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Solution

The fourth proportional to 12,576.32, 18,866.09 and 3,809.69 is: 5,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.32 : 18,866.09 = 3,809.69 : x
  2. Step 2: Convert to fraction form
    12,576.32/18,866.09 = 3,809.69/x
  3. Step 3: Cross multiply
    12,576.32x = 18,866.09 × 3,809.69
  4. Step 4: Simplify right side
    12,576.32x = 71,873,869.61
  5. Step 5: Solve for x
    x = 71,873,869.61/12,576.32
  6. Step 6: Final answer
    x = 5,715.02

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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.