Home / 18,641.36-25,724.69-10,143.65

Finding the Fourth Proportional to 18,641.36, 25,724.69 and 10,143.65

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Solution

The fourth proportional to 18,641.36, 25,724.69 and 10,143.65 is: 13,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.36 : 25,724.69 = 10,143.65 : x
  2. Step 2: Convert to fraction form
    18,641.36/25,724.69 = 10,143.65/x
  3. Step 3: Cross multiply
    18,641.36x = 25,724.69 × 10,143.65
  4. Step 4: Simplify right side
    18,641.36x = 260,942,257.60
  5. Step 5: Solve for x
    x = 260,942,257.60/18,641.36
  6. Step 6: Final answer
    x = 13,998.03

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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.