Home / 11,121.24-16,685.36-4,886.49

Finding the Fourth Proportional to 11,121.24, 16,685.36 and 4,886.49

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Solution

The fourth proportional to 11,121.24, 16,685.36 and 4,886.49 is: 7,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.24 : 16,685.36 = 4,886.49 : x
  2. Step 2: Convert to fraction form
    11,121.24/16,685.36 = 4,886.49/x
  3. Step 3: Cross multiply
    11,121.24x = 16,685.36 × 4,886.49
  4. Step 4: Simplify right side
    11,121.24x = 81,532,878.50
  5. Step 5: Solve for x
    x = 81,532,878.50/11,121.24
  6. Step 6: Final answer
    x = 7,331.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.