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Finding the Fourth Proportional to 11,441.78, 17,124.57 and 8,653.08

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Solution

The fourth proportional to 11,441.78, 17,124.57 and 8,653.08 is: 12,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,441.78 : 17,124.57 = 8,653.08 : x
  2. Step 2: Convert to fraction form
    11,441.78/17,124.57 = 8,653.08/x
  3. Step 3: Cross multiply
    11,441.78x = 17,124.57 × 8,653.08
  4. Step 4: Simplify right side
    11,441.78x = 148,180,274.18
  5. Step 5: Solve for x
    x = 148,180,274.18/11,441.78
  6. Step 6: Final answer
    x = 12,950.81

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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.