Home / 13,039.68-19,553.52-8,101.92

Finding the Fourth Proportional to 13,039.68, 19,553.52 and 8,101.92

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Solution

The fourth proportional to 13,039.68, 19,553.52 and 8,101.92 is: 12,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.68 : 19,553.52 = 8,101.92 : x
  2. Step 2: Convert to fraction form
    13,039.68/19,553.52 = 8,101.92/x
  3. Step 3: Cross multiply
    13,039.68x = 19,553.52 × 8,101.92
  4. Step 4: Simplify right side
    13,039.68x = 158,421,054.76
  5. Step 5: Solve for x
    x = 158,421,054.76/13,039.68
  6. Step 6: Final answer
    x = 12,149.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.