Home / 15,441.75-21,310.68-9,394.35

Finding the Fourth Proportional to 15,441.75, 21,310.68 and 9,394.35

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Solution

The fourth proportional to 15,441.75, 21,310.68 and 9,394.35 is: 12,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.75 : 21,310.68 = 9,394.35 : x
  2. Step 2: Convert to fraction form
    15,441.75/21,310.68 = 9,394.35/x
  3. Step 3: Cross multiply
    15,441.75x = 21,310.68 × 9,394.35
  4. Step 4: Simplify right side
    15,441.75x = 200,199,986.66
  5. Step 5: Solve for x
    x = 200,199,986.66/15,441.75
  6. Step 6: Final answer
    x = 12,964.85

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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.