Home / 14,920.35-20,590.07-8,206.43

Finding the Fourth Proportional to 14,920.35, 20,590.07 and 8,206.43

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Solution

The fourth proportional to 14,920.35, 20,590.07 and 8,206.43 is: 11,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.35 : 20,590.07 = 8,206.43 : x
  2. Step 2: Convert to fraction form
    14,920.35/20,590.07 = 8,206.43/x
  3. Step 3: Cross multiply
    14,920.35x = 20,590.07 × 8,206.43
  4. Step 4: Simplify right side
    14,920.35x = 168,970,824.17
  5. Step 5: Solve for x
    x = 168,970,824.17/14,920.35
  6. Step 6: Final answer
    x = 11,324.86

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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.