Home / 16,109.13-22,220.37-11,639.45

Finding the Fourth Proportional to 16,109.13, 22,220.37 and 11,639.45

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Solution

The fourth proportional to 16,109.13, 22,220.37 and 11,639.45 is: 16,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,109.13 : 22,220.37 = 11,639.45 : x
  2. Step 2: Convert to fraction form
    16,109.13/22,220.37 = 11,639.45/x
  3. Step 3: Cross multiply
    16,109.13x = 22,220.37 × 11,639.45
  4. Step 4: Simplify right side
    16,109.13x = 258,632,774.49
  5. Step 5: Solve for x
    x = 258,632,774.49/16,109.13
  6. Step 6: Final answer
    x = 16,055.04

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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.