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Finding the Fourth Proportional to 14,869.25, 20,519.57 and 8,245.25

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Solution

The fourth proportional to 14,869.25, 20,519.57 and 8,245.25 is: 11,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.25 : 20,519.57 = 8,245.25 : x
  2. Step 2: Convert to fraction form
    14,869.25/20,519.57 = 8,245.25/x
  3. Step 3: Cross multiply
    14,869.25x = 20,519.57 × 8,245.25
  4. Step 4: Simplify right side
    14,869.25x = 169,188,943.32
  5. Step 5: Solve for x
    x = 169,188,943.32/14,869.25
  6. Step 6: Final answer
    x = 11,378.45

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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.