Home / 18,641.53-25,725.92-10,685.25

Finding the Fourth Proportional to 18,641.53, 25,725.92 and 10,685.25

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Solution

The fourth proportional to 18,641.53, 25,725.92 and 10,685.25 is: 14,745.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.53 : 25,725.92 = 10,685.25 : x
  2. Step 2: Convert to fraction form
    18,641.53/25,725.92 = 10,685.25/x
  3. Step 3: Cross multiply
    18,641.53x = 25,725.92 × 10,685.25
  4. Step 4: Simplify right side
    18,641.53x = 274,887,886.68
  5. Step 5: Solve for x
    x = 274,887,886.68/18,641.53
  6. Step 6: Final answer
    x = 14,745.99

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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.