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Finding the Fourth Proportional to 14,819.22, 20,440.89 and 9,505.62

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Solution

The fourth proportional to 14,819.22, 20,440.89 and 9,505.62 is: 13,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.22 : 20,440.89 = 9,505.62 : x
  2. Step 2: Convert to fraction form
    14,819.22/20,440.89 = 9,505.62/x
  3. Step 3: Cross multiply
    14,819.22x = 20,440.89 × 9,505.62
  4. Step 4: Simplify right side
    14,819.22x = 194,303,332.80
  5. Step 5: Solve for x
    x = 194,303,332.80/14,819.22
  6. Step 6: Final answer
    x = 13,111.58

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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.