Home / 14,708.49-20,297.21-8,419.65

Finding the Fourth Proportional to 14,708.49, 20,297.21 and 8,419.65

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Solution

The fourth proportional to 14,708.49, 20,297.21 and 8,419.65 is: 11,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,708.49 : 20,297.21 = 8,419.65 : x
  2. Step 2: Convert to fraction form
    14,708.49/20,297.21 = 8,419.65/x
  3. Step 3: Cross multiply
    14,708.49x = 20,297.21 × 8,419.65
  4. Step 4: Simplify right side
    14,708.49x = 170,895,404.18
  5. Step 5: Solve for x
    x = 170,895,404.18/14,708.49
  6. Step 6: Final answer
    x = 11,618.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.