Home / 10,972.56-15,142.32-6,256.92

Finding the Fourth Proportional to 10,972.56, 15,142.32 and 6,256.92

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Solution

The fourth proportional to 10,972.56, 15,142.32 and 6,256.92 is: 8,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.56 : 15,142.32 = 6,256.92 : x
  2. Step 2: Convert to fraction form
    10,972.56/15,142.32 = 6,256.92/x
  3. Step 3: Cross multiply
    10,972.56x = 15,142.32 × 6,256.92
  4. Step 4: Simplify right side
    10,972.56x = 94,744,284.85
  5. Step 5: Solve for x
    x = 94,744,284.85/10,972.56
  6. Step 6: Final answer
    x = 8,634.66

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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.