Home / 19,216.63-28,827.92-8,123.36

Finding the Fourth Proportional to 19,216.63, 28,827.92 and 8,123.36

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Solution

The fourth proportional to 19,216.63, 28,827.92 and 8,123.36 is: 12,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,216.63 : 28,827.92 = 8,123.36 : x
  2. Step 2: Convert to fraction form
    19,216.63/28,827.92 = 8,123.36/x
  3. Step 3: Cross multiply
    19,216.63x = 28,827.92 × 8,123.36
  4. Step 4: Simplify right side
    19,216.63x = 234,179,572.21
  5. Step 5: Solve for x
    x = 234,179,572.21/19,216.63
  6. Step 6: Final answer
    x = 12,186.30

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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.