Home / 26,407.41-39,614.40-8,639.88

Finding the Fourth Proportional to 26,407.41, 39,614.40 and 8,639.88

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Solution

The fourth proportional to 26,407.41, 39,614.40 and 8,639.88 is: 12,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,407.41 : 39,614.40 = 8,639.88 : x
  2. Step 2: Convert to fraction form
    26,407.41/39,614.40 = 8,639.88/x
  3. Step 3: Cross multiply
    26,407.41x = 39,614.40 × 8,639.88
  4. Step 4: Simplify right side
    26,407.41x = 342,263,662.27
  5. Step 5: Solve for x
    x = 342,263,662.27/26,407.41
  6. Step 6: Final answer
    x = 12,960.89

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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.