Home / 19,276.68-28,914.72-6,128.87

Finding the Fourth Proportional to 19,276.68, 28,914.72 and 6,128.87

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Solution

The fourth proportional to 19,276.68, 28,914.72 and 6,128.87 is: 9,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.68 : 28,914.72 = 6,128.87 : x
  2. Step 2: Convert to fraction form
    19,276.68/28,914.72 = 6,128.87/x
  3. Step 3: Cross multiply
    19,276.68x = 28,914.72 × 6,128.87
  4. Step 4: Simplify right side
    19,276.68x = 177,214,426.88
  5. Step 5: Solve for x
    x = 177,214,426.88/19,276.68
  6. Step 6: Final answer
    x = 9,193.20

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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.