Home / 10,127.88-15,181.43-4,855.19

Finding the Fourth Proportional to 10,127.88, 15,181.43 and 4,855.19

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Solution

The fourth proportional to 10,127.88, 15,181.43 and 4,855.19 is: 7,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.88 : 15,181.43 = 4,855.19 : x
  2. Step 2: Convert to fraction form
    10,127.88/15,181.43 = 4,855.19/x
  3. Step 3: Cross multiply
    10,127.88x = 15,181.43 × 4,855.19
  4. Step 4: Simplify right side
    10,127.88x = 73,708,626.94
  5. Step 5: Solve for x
    x = 73,708,626.94/10,127.88
  6. Step 6: Final answer
    x = 7,277.79

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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.