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Finding the Fourth Proportional to 15,009.08, 20,713.78 and 8,296.02

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Solution

The fourth proportional to 15,009.08, 20,713.78 and 8,296.02 is: 11,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.08 : 20,713.78 = 8,296.02 : x
  2. Step 2: Convert to fraction form
    15,009.08/20,713.78 = 8,296.02/x
  3. Step 3: Cross multiply
    15,009.08x = 20,713.78 × 8,296.02
  4. Step 4: Simplify right side
    15,009.08x = 171,841,933.16
  5. Step 5: Solve for x
    x = 171,841,933.16/15,009.08
  6. Step 6: Final answer
    x = 11,449.20

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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.