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Finding the Fourth Proportional to 15,018.22, 20,724.99 and 8,304.01

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Solution

The fourth proportional to 15,018.22, 20,724.99 and 8,304.01 is: 11,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.22 : 20,724.99 = 8,304.01 : x
  2. Step 2: Convert to fraction form
    15,018.22/20,724.99 = 8,304.01/x
  3. Step 3: Cross multiply
    15,018.22x = 20,724.99 × 8,304.01
  4. Step 4: Simplify right side
    15,018.22x = 172,100,524.21
  5. Step 5: Solve for x
    x = 172,100,524.21/15,018.22
  6. Step 6: Final answer
    x = 11,459.45

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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.