Home / 11,723.45-17,568.76-8,421.08

Finding the Fourth Proportional to 11,723.45, 17,568.76 and 8,421.08

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Solution

The fourth proportional to 11,723.45, 17,568.76 and 8,421.08 is: 12,619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.45 : 17,568.76 = 8,421.08 : x
  2. Step 2: Convert to fraction form
    11,723.45/17,568.76 = 8,421.08/x
  3. Step 3: Cross multiply
    11,723.45x = 17,568.76 × 8,421.08
  4. Step 4: Simplify right side
    11,723.45x = 147,947,933.46
  5. Step 5: Solve for x
    x = 147,947,933.46/11,723.45
  6. Step 6: Final answer
    x = 12,619.83

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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.