Home / 18,722.62-25,837.20-10,766.40

Finding the Fourth Proportional to 18,722.62, 25,837.20 and 10,766.40

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Solution

The fourth proportional to 18,722.62, 25,837.20 and 10,766.40 is: 14,857.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.62 : 25,837.20 = 10,766.40 : x
  2. Step 2: Convert to fraction form
    18,722.62/25,837.20 = 10,766.40/x
  3. Step 3: Cross multiply
    18,722.62x = 25,837.20 × 10,766.40
  4. Step 4: Simplify right side
    18,722.62x = 278,173,630.08
  5. Step 5: Solve for x
    x = 278,173,630.08/18,722.62
  6. Step 6: Final answer
    x = 14,857.62

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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.