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Finding the Fourth Proportional to 15,054.57, 20,773.61 and 8,338.50

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Solution

The fourth proportional to 15,054.57, 20,773.61 and 8,338.50 is: 11,506.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.57 : 20,773.61 = 8,338.50 : x
  2. Step 2: Convert to fraction form
    15,054.57/20,773.61 = 8,338.50/x
  3. Step 3: Cross multiply
    15,054.57x = 20,773.61 × 8,338.50
  4. Step 4: Simplify right side
    15,054.57x = 173,220,705.29
  5. Step 5: Solve for x
    x = 173,220,705.29/15,054.57
  6. Step 6: Final answer
    x = 11,506.19

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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.