Home / 13,859.76-19,126.26-8,269.68

Finding the Fourth Proportional to 13,859.76, 19,126.26 and 8,269.68

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Solution

The fourth proportional to 13,859.76, 19,126.26 and 8,269.68 is: 11,412.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.76 : 19,126.26 = 8,269.68 : x
  2. Step 2: Convert to fraction form
    13,859.76/19,126.26 = 8,269.68/x
  3. Step 3: Cross multiply
    13,859.76x = 19,126.26 × 8,269.68
  4. Step 4: Simplify right side
    13,859.76x = 158,168,049.80
  5. Step 5: Solve for x
    x = 158,168,049.80/13,859.76
  6. Step 6: Final answer
    x = 11,412.03

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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.