Home / 11,336.20-15,636.18-11,128.84

Finding the Fourth Proportional to 11,336.20, 15,636.18 and 11,128.84

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Solution

The fourth proportional to 11,336.20, 15,636.18 and 11,128.84 is: 15,350.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.20 : 15,636.18 = 11,128.84 : x
  2. Step 2: Convert to fraction form
    11,336.20/15,636.18 = 11,128.84/x
  3. Step 3: Cross multiply
    11,336.20x = 15,636.18 × 11,128.84
  4. Step 4: Simplify right side
    11,336.20x = 174,012,545.43
  5. Step 5: Solve for x
    x = 174,012,545.43/11,336.20
  6. Step 6: Final answer
    x = 15,350.17

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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.