Home / 16,995.50-25,489.40-6,461.78

Finding the Fourth Proportional to 16,995.50, 25,489.40 and 6,461.78

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Solution

The fourth proportional to 16,995.50, 25,489.40 and 6,461.78 is: 9,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,995.50 : 25,489.40 = 6,461.78 : x
  2. Step 2: Convert to fraction form
    16,995.50/25,489.40 = 6,461.78/x
  3. Step 3: Cross multiply
    16,995.50x = 25,489.40 × 6,461.78
  4. Step 4: Simplify right side
    16,995.50x = 164,706,771.72
  5. Step 5: Solve for x
    x = 164,706,771.72/16,995.50
  6. Step 6: Final answer
    x = 9,691.20

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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.