Home / 11,449.32-15,791.88-7,416.12

Finding the Fourth Proportional to 11,449.32, 15,791.88 and 7,416.12

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Solution

The fourth proportional to 11,449.32, 15,791.88 and 7,416.12 is: 10,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.32 : 15,791.88 = 7,416.12 : x
  2. Step 2: Convert to fraction form
    11,449.32/15,791.88 = 7,416.12/x
  3. Step 3: Cross multiply
    11,449.32x = 15,791.88 × 7,416.12
  4. Step 4: Simplify right side
    11,449.32x = 117,114,477.11
  5. Step 5: Solve for x
    x = 117,114,477.11/11,449.32
  6. Step 6: Final answer
    x = 10,228.95

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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.