Home / 19,837.68-29,756.52-8,147.76

Finding the Fourth Proportional to 19,837.68, 29,756.52 and 8,147.76

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Solution

The fourth proportional to 19,837.68, 29,756.52 and 8,147.76 is: 12,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,837.68 : 29,756.52 = 8,147.76 : x
  2. Step 2: Convert to fraction form
    19,837.68/29,756.52 = 8,147.76/x
  3. Step 3: Cross multiply
    19,837.68x = 29,756.52 × 8,147.76
  4. Step 4: Simplify right side
    19,837.68x = 242,448,983.40
  5. Step 5: Solve for x
    x = 242,448,983.40/19,837.68
  6. Step 6: Final answer
    x = 12,221.64

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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.