Home / 13,209.78-19,814.73-3,349.05

Finding the Fourth Proportional to 13,209.78, 19,814.73 and 3,349.05

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Solution

The fourth proportional to 13,209.78, 19,814.73 and 3,349.05 is: 5,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.78 : 19,814.73 = 3,349.05 : x
  2. Step 2: Convert to fraction form
    13,209.78/19,814.73 = 3,349.05/x
  3. Step 3: Cross multiply
    13,209.78x = 19,814.73 × 3,349.05
  4. Step 4: Simplify right side
    13,209.78x = 66,360,434.64
  5. Step 5: Solve for x
    x = 66,360,434.64/13,209.78
  6. Step 6: Final answer
    x = 5,023.58

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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.