Home / 12,724.84-19,089.08-3,960.64

Finding the Fourth Proportional to 12,724.84, 19,089.08 and 3,960.64

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Solution

The fourth proportional to 12,724.84, 19,089.08 and 3,960.64 is: 5,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.84 : 19,089.08 = 3,960.64 : x
  2. Step 2: Convert to fraction form
    12,724.84/19,089.08 = 3,960.64/x
  3. Step 3: Cross multiply
    12,724.84x = 19,089.08 × 3,960.64
  4. Step 4: Simplify right side
    12,724.84x = 75,604,973.81
  5. Step 5: Solve for x
    x = 75,604,973.81/12,724.84
  6. Step 6: Final answer
    x = 5,941.53

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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.