Home / 18,665.85-25,758.87-10,282.35

Finding the Fourth Proportional to 18,665.85, 25,758.87 and 10,282.35

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Solution

The fourth proportional to 18,665.85, 25,758.87 and 10,282.35 is: 14,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.85 : 25,758.87 = 10,282.35 : x
  2. Step 2: Convert to fraction form
    18,665.85/25,758.87 = 10,282.35/x
  3. Step 3: Cross multiply
    18,665.85x = 25,758.87 × 10,282.35
  4. Step 4: Simplify right side
    18,665.85x = 264,861,716.94
  5. Step 5: Solve for x
    x = 264,861,716.94/18,665.85
  6. Step 6: Final answer
    x = 14,189.64

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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.