Home / 11,806.20-16,275.44-8,258.40

Finding the Fourth Proportional to 11,806.20, 16,275.44 and 8,258.40

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Solution

The fourth proportional to 11,806.20, 16,275.44 and 8,258.40 is: 11,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,806.20 : 16,275.44 = 8,258.40 : x
  2. Step 2: Convert to fraction form
    11,806.20/16,275.44 = 8,258.40/x
  3. Step 3: Cross multiply
    11,806.20x = 16,275.44 × 8,258.40
  4. Step 4: Simplify right side
    11,806.20x = 134,409,093.70
  5. Step 5: Solve for x
    x = 134,409,093.70/11,806.20
  6. Step 6: Final answer
    x = 11,384.62

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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.