Home / 11,227.60-15,489.66-6,509.08

Finding the Fourth Proportional to 11,227.60, 15,489.66 and 6,509.08

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Solution

The fourth proportional to 11,227.60, 15,489.66 and 6,509.08 is: 8,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.60 : 15,489.66 = 6,509.08 : x
  2. Step 2: Convert to fraction form
    11,227.60/15,489.66 = 6,509.08/x
  3. Step 3: Cross multiply
    11,227.60x = 15,489.66 × 6,509.08
  4. Step 4: Simplify right side
    11,227.60x = 100,823,436.11
  5. Step 5: Solve for x
    x = 100,823,436.11/11,227.60
  6. Step 6: Final answer
    x = 8,979.96

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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.