Home / 11,580.94-15,981.70-6,275.76

Finding the Fourth Proportional to 11,580.94, 15,981.70 and 6,275.76

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Solution

The fourth proportional to 11,580.94, 15,981.70 and 6,275.76 is: 8,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.94 : 15,981.70 = 6,275.76 : x
  2. Step 2: Convert to fraction form
    11,580.94/15,981.70 = 6,275.76/x
  3. Step 3: Cross multiply
    11,580.94x = 15,981.70 × 6,275.76
  4. Step 4: Simplify right side
    11,580.94x = 100,297,321.37
  5. Step 5: Solve for x
    x = 100,297,321.37/11,580.94
  6. Step 6: Final answer
    x = 8,660.55

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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.