Home / 10,172.39-15,257.97-2,777.09

Finding the Fourth Proportional to 10,172.39, 15,257.97 and 2,777.09

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Solution

The fourth proportional to 10,172.39, 15,257.97 and 2,777.09 is: 4,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.39 : 15,257.97 = 2,777.09 : x
  2. Step 2: Convert to fraction form
    10,172.39/15,257.97 = 2,777.09/x
  3. Step 3: Cross multiply
    10,172.39x = 15,257.97 × 2,777.09
  4. Step 4: Simplify right side
    10,172.39x = 42,372,679.62
  5. Step 5: Solve for x
    x = 42,372,679.62/10,172.39
  6. Step 6: Final answer
    x = 4,165.46

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1.5x scale

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.