Home / 13,349.33-18,425.91-8,815.31

Finding the Fourth Proportional to 13,349.33, 18,425.91 and 8,815.31

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Solution

The fourth proportional to 13,349.33, 18,425.91 and 8,815.31 is: 12,167.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.33 : 18,425.91 = 8,815.31 : x
  2. Step 2: Convert to fraction form
    13,349.33/18,425.91 = 8,815.31/x
  3. Step 3: Cross multiply
    13,349.33x = 18,425.91 × 8,815.31
  4. Step 4: Simplify right side
    13,349.33x = 162,430,108.68
  5. Step 5: Solve for x
    x = 162,430,108.68/13,349.33
  6. Step 6: Final answer
    x = 12,167.66

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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.