Home / 11,137.91-15,364.74-6,660.48

Finding the Fourth Proportional to 11,137.91, 15,364.74 and 6,660.48

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Solution

The fourth proportional to 11,137.91, 15,364.74 and 6,660.48 is: 9,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.91 : 15,364.74 = 6,660.48 : x
  2. Step 2: Convert to fraction form
    11,137.91/15,364.74 = 6,660.48/x
  3. Step 3: Cross multiply
    11,137.91x = 15,364.74 × 6,660.48
  4. Step 4: Simplify right side
    11,137.91x = 102,336,502.18
  5. Step 5: Solve for x
    x = 102,336,502.18/11,137.91
  6. Step 6: Final answer
    x = 9,188.13

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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.