Home / 13,308.60-19,938.66-7,745.09

Finding the Fourth Proportional to 13,308.60, 19,938.66 and 7,745.09

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Solution

The fourth proportional to 13,308.60, 19,938.66 and 7,745.09 is: 11,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.60 : 19,938.66 = 7,745.09 : x
  2. Step 2: Convert to fraction form
    13,308.60/19,938.66 = 7,745.09/x
  3. Step 3: Cross multiply
    13,308.60x = 19,938.66 × 7,745.09
  4. Step 4: Simplify right side
    13,308.60x = 154,426,587.44
  5. Step 5: Solve for x
    x = 154,426,587.44/13,308.60
  6. Step 6: Final answer
    x = 11,603.52

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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.