Home / 10,972.96-15,142.62-6,257.14

Finding the Fourth Proportional to 10,972.96, 15,142.62 and 6,257.14

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Solution

The fourth proportional to 10,972.96, 15,142.62 and 6,257.14 is: 8,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.96 : 15,142.62 = 6,257.14 : x
  2. Step 2: Convert to fraction form
    10,972.96/15,142.62 = 6,257.14/x
  3. Step 3: Cross multiply
    10,972.96x = 15,142.62 × 6,257.14
  4. Step 4: Simplify right side
    10,972.96x = 94,749,493.31
  5. Step 5: Solve for x
    x = 94,749,493.31/10,972.96
  6. Step 6: Final answer
    x = 8,634.82

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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.