Home / 11,324.64-16,870.20-10,980.72

Finding the Fourth Proportional to 11,324.64, 16,870.20 and 10,980.72

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Solution

The fourth proportional to 11,324.64, 16,870.20 and 10,980.72 is: 16,357.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.64 : 16,870.20 = 10,980.72 : x
  2. Step 2: Convert to fraction form
    11,324.64/16,870.20 = 10,980.72/x
  3. Step 3: Cross multiply
    11,324.64x = 16,870.20 × 10,980.72
  4. Step 4: Simplify right side
    11,324.64x = 185,246,942.54
  5. Step 5: Solve for x
    x = 185,246,942.54/11,324.64
  6. Step 6: Final answer
    x = 16,357.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.