Home / 11,336.43-15,639.91-8,359.35

Finding the Fourth Proportional to 11,336.43, 15,639.91 and 8,359.35

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Solution

The fourth proportional to 11,336.43, 15,639.91 and 8,359.35 is: 11,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.43 : 15,639.91 = 8,359.35 : x
  2. Step 2: Convert to fraction form
    11,336.43/15,639.91 = 8,359.35/x
  3. Step 3: Cross multiply
    11,336.43x = 15,639.91 × 8,359.35
  4. Step 4: Simplify right side
    11,336.43x = 130,739,481.66
  5. Step 5: Solve for x
    x = 130,739,481.66/11,336.43
  6. Step 6: Final answer
    x = 11,532.69

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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.