Home / 19,184.18-28,780.19-8,090.87

Finding the Fourth Proportional to 19,184.18, 28,780.19 and 8,090.87

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Solution

The fourth proportional to 19,184.18, 28,780.19 and 8,090.87 is: 12,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.18 : 28,780.19 = 8,090.87 : x
  2. Step 2: Convert to fraction form
    19,184.18/28,780.19 = 8,090.87/x
  3. Step 3: Cross multiply
    19,184.18x = 28,780.19 × 8,090.87
  4. Step 4: Simplify right side
    19,184.18x = 232,856,807.36
  5. Step 5: Solve for x
    x = 232,856,807.36/19,184.18
  6. Step 6: Final answer
    x = 12,137.96

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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.