Home / 18,818.91-25,962.69-10,859.60

Finding the Fourth Proportional to 18,818.91, 25,962.69 and 10,859.60

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Solution

The fourth proportional to 18,818.91, 25,962.69 and 10,859.60 is: 14,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.91 : 25,962.69 = 10,859.60 : x
  2. Step 2: Convert to fraction form
    18,818.91/25,962.69 = 10,859.60/x
  3. Step 3: Cross multiply
    18,818.91x = 25,962.69 × 10,859.60
  4. Step 4: Simplify right side
    18,818.91x = 281,944,336.27
  5. Step 5: Solve for x
    x = 281,944,336.27/18,818.91
  6. Step 6: Final answer
    x = 14,981.97

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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.