Home / 16,807.53-25,211.30-5,120.75

Finding the Fourth Proportional to 16,807.53, 25,211.30 and 5,120.75

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Solution

The fourth proportional to 16,807.53, 25,211.30 and 5,120.75 is: 7,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.53 : 25,211.30 = 5,120.75 : x
  2. Step 2: Convert to fraction form
    16,807.53/25,211.30 = 5,120.75/x
  3. Step 3: Cross multiply
    16,807.53x = 25,211.30 × 5,120.75
  4. Step 4: Simplify right side
    16,807.53x = 129,100,764.48
  5. Step 5: Solve for x
    x = 129,100,764.48/16,807.53
  6. Step 6: Final answer
    x = 7,681.13

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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.