Home / 11,580.97-15,981.78-6,275.77

Finding the Fourth Proportional to 11,580.97, 15,981.78 and 6,275.77

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Solution

The fourth proportional to 11,580.97, 15,981.78 and 6,275.77 is: 8,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.97 : 15,981.78 = 6,275.77 : x
  2. Step 2: Convert to fraction form
    11,580.97/15,981.78 = 6,275.77/x
  3. Step 3: Cross multiply
    11,580.97x = 15,981.78 × 6,275.77
  4. Step 4: Simplify right side
    11,580.97x = 100,297,975.47
  5. Step 5: Solve for x
    x = 100,297,975.47/11,580.97
  6. Step 6: Final answer
    x = 8,660.59

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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.