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Finding the Fourth Proportional to 14,819.22, 20,422.26 and 10,620.18

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Solution

The fourth proportional to 14,819.22, 20,422.26 and 10,620.18 is: 14,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.22 : 20,422.26 = 10,620.18 : x
  2. Step 2: Convert to fraction form
    14,819.22/20,422.26 = 10,620.18/x
  3. Step 3: Cross multiply
    14,819.22x = 20,422.26 × 10,620.18
  4. Step 4: Simplify right side
    14,819.22x = 216,888,077.21
  5. Step 5: Solve for x
    x = 216,888,077.21/14,819.22
  6. Step 6: Final answer
    x = 14,635.59

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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.