Home / 12,818.71-19,226.53-3,458.01

Finding the Fourth Proportional to 12,818.71, 19,226.53 and 3,458.01

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Solution

The fourth proportional to 12,818.71, 19,226.53 and 3,458.01 is: 5,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.71 : 19,226.53 = 3,458.01 : x
  2. Step 2: Convert to fraction form
    12,818.71/19,226.53 = 3,458.01/x
  3. Step 3: Cross multiply
    12,818.71x = 19,226.53 × 3,458.01
  4. Step 4: Simplify right side
    12,818.71x = 66,485,524.36
  5. Step 5: Solve for x
    x = 66,485,524.36/12,818.71
  6. Step 6: Final answer
    x = 5,186.60

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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.