Home / 12,015.54-16,587.92-7,236.64

Finding the Fourth Proportional to 12,015.54, 16,587.92 and 7,236.64

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Solution

The fourth proportional to 12,015.54, 16,587.92 and 7,236.64 is: 9,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.54 : 16,587.92 = 7,236.64 : x
  2. Step 2: Convert to fraction form
    12,015.54/16,587.92 = 7,236.64/x
  3. Step 3: Cross multiply
    12,015.54x = 16,587.92 × 7,236.64
  4. Step 4: Simplify right side
    12,015.54x = 120,040,844.22
  5. Step 5: Solve for x
    x = 120,040,844.22/12,015.54
  6. Step 6: Final answer
    x = 9,990.47

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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.