Home / 12,609.84-18,921.64-5,214.94

Finding the Fourth Proportional to 12,609.84, 18,921.64 and 5,214.94

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Solution

The fourth proportional to 12,609.84, 18,921.64 and 5,214.94 is: 7,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.84 : 18,921.64 = 5,214.94 : x
  2. Step 2: Convert to fraction form
    12,609.84/18,921.64 = 5,214.94/x
  3. Step 3: Cross multiply
    12,609.84x = 18,921.64 × 5,214.94
  4. Step 4: Simplify right side
    12,609.84x = 98,675,217.30
  5. Step 5: Solve for x
    x = 98,675,217.30/12,609.84
  6. Step 6: Final answer
    x = 7,825.26

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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.