Home / 18,643.62-25,727.78-10,145.77

Finding the Fourth Proportional to 18,643.62, 25,727.78 and 10,145.77

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Solution

The fourth proportional to 18,643.62, 25,727.78 and 10,145.77 is: 14,000.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.62 : 25,727.78 = 10,145.77 : x
  2. Step 2: Convert to fraction form
    18,643.62/25,727.78 = 10,145.77/x
  3. Step 3: Cross multiply
    18,643.62x = 25,727.78 × 10,145.77
  4. Step 4: Simplify right side
    18,643.62x = 261,028,244.25
  5. Step 5: Solve for x
    x = 261,028,244.25/18,643.62
  6. Step 6: Final answer
    x = 14,000.94

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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.