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Finding the Fourth Proportional to 18,087.84, 27,122.04 and 6,392.40

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Solution

The fourth proportional to 18,087.84, 27,122.04 and 6,392.40 is: 9,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.84 : 27,122.04 = 6,392.40 : x
  2. Step 2: Convert to fraction form
    18,087.84/27,122.04 = 6,392.40/x
  3. Step 3: Cross multiply
    18,087.84x = 27,122.04 × 6,392.40
  4. Step 4: Simplify right side
    18,087.84x = 173,374,928.50
  5. Step 5: Solve for x
    x = 173,374,928.50/18,087.84
  6. Step 6: Final answer
    x = 9,585.16

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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.