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Finding the Fourth Proportional to 15,003.59, 22,519.01 and 7,989.46

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Solution

The fourth proportional to 15,003.59, 22,519.01 and 7,989.46 is: 11,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.59 : 22,519.01 = 7,989.46 : x
  2. Step 2: Convert to fraction form
    15,003.59/22,519.01 = 7,989.46/x
  3. Step 3: Cross multiply
    15,003.59x = 22,519.01 × 7,989.46
  4. Step 4: Simplify right side
    15,003.59x = 179,914,693.31
  5. Step 5: Solve for x
    x = 179,914,693.31/15,003.59
  6. Step 6: Final answer
    x = 11,991.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.