Home / 18,626.86-25,705.38-10,669.78

Finding the Fourth Proportional to 18,626.86, 25,705.38 and 10,669.78

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Solution

The fourth proportional to 18,626.86, 25,705.38 and 10,669.78 is: 14,724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.86 : 25,705.38 = 10,669.78 : x
  2. Step 2: Convert to fraction form
    18,626.86/25,705.38 = 10,669.78/x
  3. Step 3: Cross multiply
    18,626.86x = 25,705.38 × 10,669.78
  4. Step 4: Simplify right side
    18,626.86x = 274,270,749.42
  5. Step 5: Solve for x
    x = 274,270,749.42/18,626.86
  6. Step 6: Final answer
    x = 14,724.48

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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.