Home / 12,691.89-19,050.14-6,122.69

Finding the Fourth Proportional to 12,691.89, 19,050.14 and 6,122.69

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Solution

The fourth proportional to 12,691.89, 19,050.14 and 6,122.69 is: 9,189.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.89 : 19,050.14 = 6,122.69 : x
  2. Step 2: Convert to fraction form
    12,691.89/19,050.14 = 6,122.69/x
  3. Step 3: Cross multiply
    12,691.89x = 19,050.14 × 6,122.69
  4. Step 4: Simplify right side
    12,691.89x = 116,638,058.73
  5. Step 5: Solve for x
    x = 116,638,058.73/12,691.89
  6. Step 6: Final answer
    x = 9,189.97

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1.5x scale

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.