Home / 11,695.12-16,142.52-7,219.60

Finding the Fourth Proportional to 11,695.12, 16,142.52 and 7,219.60

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Solution

The fourth proportional to 11,695.12, 16,142.52 and 7,219.60 is: 9,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,695.12 : 16,142.52 = 7,219.60 : x
  2. Step 2: Convert to fraction form
    11,695.12/16,142.52 = 7,219.60/x
  3. Step 3: Cross multiply
    11,695.12x = 16,142.52 × 7,219.60
  4. Step 4: Simplify right side
    11,695.12x = 116,542,537.39
  5. Step 5: Solve for x
    x = 116,542,537.39/11,695.12
  6. Step 6: Final answer
    x = 9,965.06

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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.