Home / 12,864.45-19,295.37-8,731.02

Finding the Fourth Proportional to 12,864.45, 19,295.37 and 8,731.02

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Solution

The fourth proportional to 12,864.45, 19,295.37 and 8,731.02 is: 13,095.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.45 : 19,295.37 = 8,731.02 : x
  2. Step 2: Convert to fraction form
    12,864.45/19,295.37 = 8,731.02/x
  3. Step 3: Cross multiply
    12,864.45x = 19,295.37 × 8,731.02
  4. Step 4: Simplify right side
    12,864.45x = 168,468,261.38
  5. Step 5: Solve for x
    x = 168,468,261.38/12,864.45
  6. Step 6: Final answer
    x = 13,095.64

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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.