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Finding the Fourth Proportional to 12,154.62, 18,264.87 and 6,612.06

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Solution

The fourth proportional to 12,154.62, 18,264.87 and 6,612.06 is: 9,936.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.62 : 18,264.87 = 6,612.06 : x
  2. Step 2: Convert to fraction form
    12,154.62/18,264.87 = 6,612.06/x
  3. Step 3: Cross multiply
    12,154.62x = 18,264.87 × 6,612.06
  4. Step 4: Simplify right side
    12,154.62x = 120,768,416.33
  5. Step 5: Solve for x
    x = 120,768,416.33/12,154.62
  6. Step 6: Final answer
    x = 9,936.01

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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.