Home / 13,215.96-19,785.05-8,822.52

Finding the Fourth Proportional to 13,215.96, 19,785.05 and 8,822.52

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Solution

The fourth proportional to 13,215.96, 19,785.05 and 8,822.52 is: 13,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.96 : 19,785.05 = 8,822.52 : x
  2. Step 2: Convert to fraction form
    13,215.96/19,785.05 = 8,822.52/x
  3. Step 3: Cross multiply
    13,215.96x = 19,785.05 × 8,822.52
  4. Step 4: Simplify right side
    13,215.96x = 174,553,955.21
  5. Step 5: Solve for x
    x = 174,553,955.21/13,215.96
  6. Step 6: Final answer
    x = 13,207.82

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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.