Home / 13,098.19-18,081.69-8,385.22

Finding the Fourth Proportional to 13,098.19, 18,081.69 and 8,385.22

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Solution

The fourth proportional to 13,098.19, 18,081.69 and 8,385.22 is: 11,575.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,098.19 : 18,081.69 = 8,385.22 : x
  2. Step 2: Convert to fraction form
    13,098.19/18,081.69 = 8,385.22/x
  3. Step 3: Cross multiply
    13,098.19x = 18,081.69 × 8,385.22
  4. Step 4: Simplify right side
    13,098.19x = 151,618,948.62
  5. Step 5: Solve for x
    x = 151,618,948.62/13,098.19
  6. Step 6: Final answer
    x = 11,575.56

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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.