Home / 18,786.25-25,925.84-10,402.75

Finding the Fourth Proportional to 18,786.25, 25,925.84 and 10,402.75

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Solution

The fourth proportional to 18,786.25, 25,925.84 and 10,402.75 is: 14,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.25 : 25,925.84 = 10,402.75 : x
  2. Step 2: Convert to fraction form
    18,786.25/25,925.84 = 10,402.75/x
  3. Step 3: Cross multiply
    18,786.25x = 25,925.84 × 10,402.75
  4. Step 4: Simplify right side
    18,786.25x = 269,700,032.06
  5. Step 5: Solve for x
    x = 269,700,032.06/18,786.25
  6. Step 6: Final answer
    x = 14,356.25

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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.