Home / 18,641.44-25,725.24-10,143.64

Finding the Fourth Proportional to 18,641.44, 25,725.24 and 10,143.64

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Solution

The fourth proportional to 18,641.44, 25,725.24 and 10,143.64 is: 13,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.44 : 25,725.24 = 10,143.64 : x
  2. Step 2: Convert to fraction form
    18,641.44/25,725.24 = 10,143.64/x
  3. Step 3: Cross multiply
    18,641.44x = 25,725.24 × 10,143.64
  4. Step 4: Simplify right side
    18,641.44x = 260,947,573.47
  5. Step 5: Solve for x
    x = 260,947,573.47/18,641.44
  6. Step 6: Final answer
    x = 13,998.25

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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.