Home / 12,464.16-18,696.36-8,556.72

Finding the Fourth Proportional to 12,464.16, 18,696.36 and 8,556.72

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Solution

The fourth proportional to 12,464.16, 18,696.36 and 8,556.72 is: 12,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,464.16 : 18,696.36 = 8,556.72 : x
  2. Step 2: Convert to fraction form
    12,464.16/18,696.36 = 8,556.72/x
  3. Step 3: Cross multiply
    12,464.16x = 18,696.36 × 8,556.72
  4. Step 4: Simplify right side
    12,464.16x = 159,979,517.54
  5. Step 5: Solve for x
    x = 159,979,517.54/12,464.16
  6. Step 6: Final answer
    x = 12,835.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.