Home / 11,121.37-16,686.99-5,855.10

Finding the Fourth Proportional to 11,121.37, 16,686.99 and 5,855.10

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Solution

The fourth proportional to 11,121.37, 16,686.99 and 5,855.10 is: 8,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.37 : 16,686.99 = 5,855.10 : x
  2. Step 2: Convert to fraction form
    11,121.37/16,686.99 = 5,855.10/x
  3. Step 3: Cross multiply
    11,121.37x = 16,686.99 × 5,855.10
  4. Step 4: Simplify right side
    11,121.37x = 97,703,995.15
  5. Step 5: Solve for x
    x = 97,703,995.15/11,121.37
  6. Step 6: Final answer
    x = 8,785.25

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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.