Home / 12,818.46-19,218.60-5,698.80

Finding the Fourth Proportional to 12,818.46, 19,218.60 and 5,698.80

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Solution

The fourth proportional to 12,818.46, 19,218.60 and 5,698.80 is: 8,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.46 : 19,218.60 = 5,698.80 : x
  2. Step 2: Convert to fraction form
    12,818.46/19,218.60 = 5,698.80/x
  3. Step 3: Cross multiply
    12,818.46x = 19,218.60 × 5,698.80
  4. Step 4: Simplify right side
    12,818.46x = 109,522,957.68
  5. Step 5: Solve for x
    x = 109,522,957.68/12,818.46
  6. Step 6: Final answer
    x = 8,544.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.