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Finding the Fourth Proportional to 18,753, 25,879.14 and 10,370.28

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Solution

The fourth proportional to 18,753, 25,879.14 and 10,370.28 is: 14,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753 : 25,879.14 = 10,370.28 : x
  2. Step 2: Convert to fraction form
    18,753/25,879.14 = 10,370.28/x
  3. Step 3: Cross multiply
    18,753x = 25,879.14 × 10,370.28
  4. Step 4: Simplify right side
    18,753x = 268,373,927.96
  5. Step 5: Solve for x
    x = 268,373,927.96/18,753
  6. Step 6: Final answer
    x = 14,310.99

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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.