Home / 19,655.19-29,466.21-7,976.61

Finding the Fourth Proportional to 19,655.19, 29,466.21 and 7,976.61

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Solution

The fourth proportional to 19,655.19, 29,466.21 and 7,976.61 is: 11,958.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.19 : 29,466.21 = 7,976.61 : x
  2. Step 2: Convert to fraction form
    19,655.19/29,466.21 = 7,976.61/x
  3. Step 3: Cross multiply
    19,655.19x = 29,466.21 × 7,976.61
  4. Step 4: Simplify right side
    19,655.19x = 235,040,465.35
  5. Step 5: Solve for x
    x = 235,040,465.35/19,655.19
  6. Step 6: Final answer
    x = 11,958.19

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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.