Home / 12,516.24-18,785.52-9,221.16

Finding the Fourth Proportional to 12,516.24, 18,785.52 and 9,221.16

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Solution

The fourth proportional to 12,516.24, 18,785.52 and 9,221.16 is: 13,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.24 : 18,785.52 = 9,221.16 : x
  2. Step 2: Convert to fraction form
    12,516.24/18,785.52 = 9,221.16/x
  3. Step 3: Cross multiply
    12,516.24x = 18,785.52 × 9,221.16
  4. Step 4: Simplify right side
    12,516.24x = 173,224,285.60
  5. Step 5: Solve for x
    x = 173,224,285.60/12,516.24
  6. Step 6: Final answer
    x = 13,839.96

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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.