Home / 12,691.03-19,025.61-4,905.31

Finding the Fourth Proportional to 12,691.03, 19,025.61 and 4,905.31

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Solution

The fourth proportional to 12,691.03, 19,025.61 and 4,905.31 is: 7,353.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.03 : 19,025.61 = 4,905.31 : x
  2. Step 2: Convert to fraction form
    12,691.03/19,025.61 = 4,905.31/x
  3. Step 3: Cross multiply
    12,691.03x = 19,025.61 × 4,905.31
  4. Step 4: Simplify right side
    12,691.03x = 93,326,514.99
  5. Step 5: Solve for x
    x = 93,326,514.99/12,691.03
  6. Step 6: Final answer
    x = 7,353.74

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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.