Home / 13,502.18-18,633.92-7,533.78

Finding the Fourth Proportional to 13,502.18, 18,633.92 and 7,533.78

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Solution

The fourth proportional to 13,502.18, 18,633.92 and 7,533.78 is: 10,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,502.18 : 18,633.92 = 7,533.78 : x
  2. Step 2: Convert to fraction form
    13,502.18/18,633.92 = 7,533.78/x
  3. Step 3: Cross multiply
    13,502.18x = 18,633.92 × 7,533.78
  4. Step 4: Simplify right side
    13,502.18x = 140,383,816.15
  5. Step 5: Solve for x
    x = 140,383,816.15/13,502.18
  6. Step 6: Final answer
    x = 10,397.13

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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.