Home / 13,297.13-18,353.17-8,265.15

Finding the Fourth Proportional to 13,297.13, 18,353.17 and 8,265.15

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Solution

The fourth proportional to 13,297.13, 18,353.17 and 8,265.15 is: 11,407.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.13 : 18,353.17 = 8,265.15 : x
  2. Step 2: Convert to fraction form
    13,297.13/18,353.17 = 8,265.15/x
  3. Step 3: Cross multiply
    13,297.13x = 18,353.17 × 8,265.15
  4. Step 4: Simplify right side
    13,297.13x = 151,691,782.18
  5. Step 5: Solve for x
    x = 151,691,782.18/13,297.13
  6. Step 6: Final answer
    x = 11,407.86

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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.