Home / 19,660.11-29,495.64-8,567.78

Finding the Fourth Proportional to 19,660.11, 29,495.64 and 8,567.78

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Solution

The fourth proportional to 19,660.11, 29,495.64 and 8,567.78 is: 12,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.11 : 29,495.64 = 8,567.78 : x
  2. Step 2: Convert to fraction form
    19,660.11/29,495.64 = 8,567.78/x
  3. Step 3: Cross multiply
    19,660.11x = 29,495.64 × 8,567.78
  4. Step 4: Simplify right side
    19,660.11x = 252,712,007.00
  5. Step 5: Solve for x
    x = 252,712,007.00/19,660.11
  6. Step 6: Final answer
    x = 12,854.05

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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.