Home / 12,688.82-19,035.04-3,924.42

Finding the Fourth Proportional to 12,688.82, 19,035.04 and 3,924.42

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Solution

The fourth proportional to 12,688.82, 19,035.04 and 3,924.42 is: 5,887.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.82 : 19,035.04 = 3,924.42 : x
  2. Step 2: Convert to fraction form
    12,688.82/19,035.04 = 3,924.42/x
  3. Step 3: Cross multiply
    12,688.82x = 19,035.04 × 3,924.42
  4. Step 4: Simplify right side
    12,688.82x = 74,701,491.68
  5. Step 5: Solve for x
    x = 74,701,491.68/12,688.82
  6. Step 6: Final answer
    x = 5,887.19

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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.