Home / 19,228.34-28,836.56-8,134.86

Finding the Fourth Proportional to 19,228.34, 28,836.56 and 8,134.86

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Solution

The fourth proportional to 19,228.34, 28,836.56 and 8,134.86 is: 12,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.34 : 28,836.56 = 8,134.86 : x
  2. Step 2: Convert to fraction form
    19,228.34/28,836.56 = 8,134.86/x
  3. Step 3: Cross multiply
    19,228.34x = 28,836.56 × 8,134.86
  4. Step 4: Simplify right side
    19,228.34x = 234,581,378.48
  5. Step 5: Solve for x
    x = 234,581,378.48/19,228.34
  6. Step 6: Final answer
    x = 12,199.77

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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.