Home / 13,138.08-19,710.72-6,556.32

Finding the Fourth Proportional to 13,138.08, 19,710.72 and 6,556.32

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Solution

The fourth proportional to 13,138.08, 19,710.72 and 6,556.32 is: 9,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.08 : 19,710.72 = 6,556.32 : x
  2. Step 2: Convert to fraction form
    13,138.08/19,710.72 = 6,556.32/x
  3. Step 3: Cross multiply
    13,138.08x = 19,710.72 × 6,556.32
  4. Step 4: Simplify right side
    13,138.08x = 129,229,787.75
  5. Step 5: Solve for x
    x = 129,229,787.75/13,138.08
  6. Step 6: Final answer
    x = 9,836.28

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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.