Home / 11,622.24-15,998.40-10,108.80

Finding the Fourth Proportional to 11,622.24, 15,998.40 and 10,108.80

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Solution

The fourth proportional to 11,622.24, 15,998.40 and 10,108.80 is: 13,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.24 : 15,998.40 = 10,108.80 : x
  2. Step 2: Convert to fraction form
    11,622.24/15,998.40 = 10,108.80/x
  3. Step 3: Cross multiply
    11,622.24x = 15,998.40 × 10,108.80
  4. Step 4: Simplify right side
    11,622.24x = 161,724,625.92
  5. Step 5: Solve for x
    x = 161,724,625.92/11,622.24
  6. Step 6: Final answer
    x = 13,915.10

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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.