Home / 12,926.46-19,390.69-4,161.64

Finding the Fourth Proportional to 12,926.46, 19,390.69 and 4,161.64

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Solution

The fourth proportional to 12,926.46, 19,390.69 and 4,161.64 is: 6,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.46 : 19,390.69 = 4,161.64 : x
  2. Step 2: Convert to fraction form
    12,926.46/19,390.69 = 4,161.64/x
  3. Step 3: Cross multiply
    12,926.46x = 19,390.69 × 4,161.64
  4. Step 4: Simplify right side
    12,926.46x = 80,697,071.13
  5. Step 5: Solve for x
    x = 80,697,071.13/12,926.46
  6. Step 6: Final answer
    x = 6,242.78

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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.