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Finding the Fourth Proportional to 15,164.94, 20,927.40 and 8,450.85

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Solution

The fourth proportional to 15,164.94, 20,927.40 and 8,450.85 is: 11,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.94 : 20,927.40 = 8,450.85 : x
  2. Step 2: Convert to fraction form
    15,164.94/20,927.40 = 8,450.85/x
  3. Step 3: Cross multiply
    15,164.94x = 20,927.40 × 8,450.85
  4. Step 4: Simplify right side
    15,164.94x = 176,854,318.29
  5. Step 5: Solve for x
    x = 176,854,318.29/15,164.94
  6. Step 6: Final answer
    x = 11,662.05

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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.