Home / 19,172.28-26,450.88-10,788.78

Finding the Fourth Proportional to 19,172.28, 26,450.88 and 10,788.78

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Solution

The fourth proportional to 19,172.28, 26,450.88 and 10,788.78 is: 14,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.28 : 26,450.88 = 10,788.78 : x
  2. Step 2: Convert to fraction form
    19,172.28/26,450.88 = 10,788.78/x
  3. Step 3: Cross multiply
    19,172.28x = 26,450.88 × 10,788.78
  4. Step 4: Simplify right side
    19,172.28x = 285,372,725.13
  5. Step 5: Solve for x
    x = 285,372,725.13/19,172.28
  6. Step 6: Final answer
    x = 14,884.65

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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.