Home / 18,786.26-25,925.04-10,288.40

Finding the Fourth Proportional to 18,786.26, 25,925.04 and 10,288.40

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Solution

The fourth proportional to 18,786.26, 25,925.04 and 10,288.40 is: 14,197.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.26 : 25,925.04 = 10,288.40 : x
  2. Step 2: Convert to fraction form
    18,786.26/25,925.04 = 10,288.40/x
  3. Step 3: Cross multiply
    18,786.26x = 25,925.04 × 10,288.40
  4. Step 4: Simplify right side
    18,786.26x = 266,727,181.54
  5. Step 5: Solve for x
    x = 266,727,181.54/18,786.26
  6. Step 6: Final answer
    x = 14,197.99

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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.