Home / 13,174.29-18,181.19-7,799.81

Finding the Fourth Proportional to 13,174.29, 18,181.19 and 7,799.81

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Solution

The fourth proportional to 13,174.29, 18,181.19 and 7,799.81 is: 10,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.29 : 18,181.19 = 7,799.81 : x
  2. Step 2: Convert to fraction form
    13,174.29/18,181.19 = 7,799.81/x
  3. Step 3: Cross multiply
    13,174.29x = 18,181.19 × 7,799.81
  4. Step 4: Simplify right side
    13,174.29x = 141,809,788.57
  5. Step 5: Solve for x
    x = 141,809,788.57/13,174.29
  6. Step 6: Final answer
    x = 10,764.13

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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.