Home / 12,632.10-17,422.05-11,116.41

Finding the Fourth Proportional to 12,632.10, 17,422.05 and 11,116.41

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Solution

The fourth proportional to 12,632.10, 17,422.05 and 11,116.41 is: 15,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.10 : 17,422.05 = 11,116.41 : x
  2. Step 2: Convert to fraction form
    12,632.10/17,422.05 = 11,116.41/x
  3. Step 3: Cross multiply
    12,632.10x = 17,422.05 × 11,116.41
  4. Step 4: Simplify right side
    12,632.10x = 193,670,650.84
  5. Step 5: Solve for x
    x = 193,670,650.84/12,632.10
  6. Step 6: Final answer
    x = 15,331.63

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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.