Home / 19,785.96-27,307.22-11,286.13

Finding the Fourth Proportional to 19,785.96, 27,307.22 and 11,286.13

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Solution

The fourth proportional to 19,785.96, 27,307.22 and 11,286.13 is: 15,576.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.96 : 27,307.22 = 11,286.13 : x
  2. Step 2: Convert to fraction form
    19,785.96/27,307.22 = 11,286.13/x
  3. Step 3: Cross multiply
    19,785.96x = 27,307.22 × 11,286.13
  4. Step 4: Simplify right side
    19,785.96x = 308,192,834.86
  5. Step 5: Solve for x
    x = 308,192,834.86/19,785.96
  6. Step 6: Final answer
    x = 15,576.34

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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.