Home / 18,940.32-26,137.68-10,557.12

Finding the Fourth Proportional to 18,940.32, 26,137.68 and 10,557.12

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Solution

The fourth proportional to 18,940.32, 26,137.68 and 10,557.12 is: 14,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.32 : 26,137.68 = 10,557.12 : x
  2. Step 2: Convert to fraction form
    18,940.32/26,137.68 = 10,557.12/x
  3. Step 3: Cross multiply
    18,940.32x = 26,137.68 × 10,557.12
  4. Step 4: Simplify right side
    18,940.32x = 275,938,624.28
  5. Step 5: Solve for x
    x = 275,938,624.28/18,940.32
  6. Step 6: Final answer
    x = 14,568.85

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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.