Home / 18,681.26-25,781.68-10,725.02

Finding the Fourth Proportional to 18,681.26, 25,781.68 and 10,725.02

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Solution

The fourth proportional to 18,681.26, 25,781.68 and 10,725.02 is: 14,801.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.26 : 25,781.68 = 10,725.02 : x
  2. Step 2: Convert to fraction form
    18,681.26/25,781.68 = 10,725.02/x
  3. Step 3: Cross multiply
    18,681.26x = 25,781.68 × 10,725.02
  4. Step 4: Simplify right side
    18,681.26x = 276,509,033.63
  5. Step 5: Solve for x
    x = 276,509,033.63/18,681.26
  6. Step 6: Final answer
    x = 14,801.41

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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.