Home / 11,090.36-16,700.18-8,188.94

Finding the Fourth Proportional to 11,090.36, 16,700.18 and 8,188.94

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Solution

The fourth proportional to 11,090.36, 16,700.18 and 8,188.94 is: 12,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.36 : 16,700.18 = 8,188.94 : x
  2. Step 2: Convert to fraction form
    11,090.36/16,700.18 = 8,188.94/x
  3. Step 3: Cross multiply
    11,090.36x = 16,700.18 × 8,188.94
  4. Step 4: Simplify right side
    11,090.36x = 136,756,772.01
  5. Step 5: Solve for x
    x = 136,756,772.01/11,090.36
  6. Step 6: Final answer
    x = 12,331.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.