Home / 8,427.88-11,631.51-5,072.44

Finding the Fourth Proportional to 8,427.88, 11,631.51 and 5,072.44

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Solution

The fourth proportional to 8,427.88, 11,631.51 and 5,072.44 is: 7,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.88 : 11,631.51 = 5,072.44 : x
  2. Step 2: Convert to fraction form
    8,427.88/11,631.51 = 5,072.44/x
  3. Step 3: Cross multiply
    8,427.88x = 11,631.51 × 5,072.44
  4. Step 4: Simplify right side
    8,427.88x = 59,000,136.58
  5. Step 5: Solve for x
    x = 59,000,136.58/8,427.88
  6. Step 6: Final answer
    x = 7,000.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.