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Finding the Fourth Proportional to 15,010.68, 20,714.62 and 8,296.76

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Solution

The fourth proportional to 15,010.68, 20,714.62 and 8,296.76 is: 11,449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.68 : 20,714.62 = 8,296.76 : x
  2. Step 2: Convert to fraction form
    15,010.68/20,714.62 = 8,296.76/x
  3. Step 3: Cross multiply
    15,010.68x = 20,714.62 × 8,296.76
  4. Step 4: Simplify right side
    15,010.68x = 171,864,230.63
  5. Step 5: Solve for x
    x = 171,864,230.63/15,010.68
  6. Step 6: Final answer
    x = 11,449.46

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Half scale
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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.