Home / 18,725.12-25,867.24-14,973.20

Finding the Fourth Proportional to 18,725.12, 25,867.24 and 14,973.20

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Solution

The fourth proportional to 18,725.12, 25,867.24 and 14,973.20 is: 20,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.12 : 25,867.24 = 14,973.20 : x
  2. Step 2: Convert to fraction form
    18,725.12/25,867.24 = 14,973.20/x
  3. Step 3: Cross multiply
    18,725.12x = 25,867.24 × 14,973.20
  4. Step 4: Simplify right side
    18,725.12x = 387,315,357.97
  5. Step 5: Solve for x
    x = 387,315,357.97/18,725.12
  6. Step 6: Final answer
    x = 20,684.27

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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.