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Finding the Fourth Proportional to 18,136.72, 27,300.70 and 15,464.08

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Solution

The fourth proportional to 18,136.72, 27,300.70 and 15,464.08 is: 23,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.72 : 27,300.70 = 15,464.08 : x
  2. Step 2: Convert to fraction form
    18,136.72/27,300.70 = 15,464.08/x
  3. Step 3: Cross multiply
    18,136.72x = 27,300.70 × 15,464.08
  4. Step 4: Simplify right side
    18,136.72x = 422,180,208.86
  5. Step 5: Solve for x
    x = 422,180,208.86/18,136.72
  6. Step 6: Final answer
    x = 23,277.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.