Home / 11,685.36-16,111.26-10,170.66

Finding the Fourth Proportional to 11,685.36, 16,111.26 and 10,170.66

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Solution

The fourth proportional to 11,685.36, 16,111.26 and 10,170.66 is: 14,022.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.36 : 16,111.26 = 10,170.66 : x
  2. Step 2: Convert to fraction form
    11,685.36/16,111.26 = 10,170.66/x
  3. Step 3: Cross multiply
    11,685.36x = 16,111.26 × 10,170.66
  4. Step 4: Simplify right side
    11,685.36x = 163,862,147.63
  5. Step 5: Solve for x
    x = 163,862,147.63/11,685.36
  6. Step 6: Final answer
    x = 14,022.86

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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.