Home / 15,187.40-20,958.55-8,473.04

Finding the Fourth Proportional to 15,187.40, 20,958.55 and 8,473.04

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Solution

The fourth proportional to 15,187.40, 20,958.55 and 8,473.04 is: 11,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.40 : 20,958.55 = 8,473.04 : x
  2. Step 2: Convert to fraction form
    15,187.40/20,958.55 = 8,473.04/x
  3. Step 3: Cross multiply
    15,187.40x = 20,958.55 × 8,473.04
  4. Step 4: Simplify right side
    15,187.40x = 177,582,538.29
  5. Step 5: Solve for x
    x = 177,582,538.29/15,187.40
  6. Step 6: Final answer
    x = 11,692.75

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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.