Home / 18,613.86-27,896.16-13,660.26

Finding the Fourth Proportional to 18,613.86, 27,896.16 and 13,660.26

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Solution

The fourth proportional to 18,613.86, 27,896.16 and 13,660.26 is: 20,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.86 : 27,896.16 = 13,660.26 : x
  2. Step 2: Convert to fraction form
    18,613.86/27,896.16 = 13,660.26/x
  3. Step 3: Cross multiply
    18,613.86x = 27,896.16 × 13,660.26
  4. Step 4: Simplify right side
    18,613.86x = 381,068,798.60
  5. Step 5: Solve for x
    x = 381,068,798.60/18,613.86
  6. Step 6: Final answer
    x = 20,472.31

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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.