Home / 18,962.10-26,168.94-13,928.49

Finding the Fourth Proportional to 18,962.10, 26,168.94 and 13,928.49

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Solution

The fourth proportional to 18,962.10, 26,168.94 and 13,928.49 is: 19,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.10 : 26,168.94 = 13,928.49 : x
  2. Step 2: Convert to fraction form
    18,962.10/26,168.94 = 13,928.49/x
  3. Step 3: Cross multiply
    18,962.10x = 26,168.94 × 13,928.49
  4. Step 4: Simplify right side
    18,962.10x = 364,493,819.10
  5. Step 5: Solve for x
    x = 364,493,819.10/18,962.10
  6. Step 6: Final answer
    x = 19,222.23

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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.