Home / 19,516.64-29,276.33-7,829.87

Finding the Fourth Proportional to 19,516.64, 29,276.33 and 7,829.87

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Solution

The fourth proportional to 19,516.64, 29,276.33 and 7,829.87 is: 11,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.64 : 29,276.33 = 7,829.87 : x
  2. Step 2: Convert to fraction form
    19,516.64/29,276.33 = 7,829.87/x
  3. Step 3: Cross multiply
    19,516.64x = 29,276.33 × 7,829.87
  4. Step 4: Simplify right side
    19,516.64x = 229,229,672.45
  5. Step 5: Solve for x
    x = 229,229,672.45/19,516.64
  6. Step 6: Final answer
    x = 11,745.35

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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.