Home / 11,409.80-17,107.37-4,750.91

Finding the Fourth Proportional to 11,409.80, 17,107.37 and 4,750.91

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Solution

The fourth proportional to 11,409.80, 17,107.37 and 4,750.91 is: 7,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.80 : 17,107.37 = 4,750.91 : x
  2. Step 2: Convert to fraction form
    11,409.80/17,107.37 = 4,750.91/x
  3. Step 3: Cross multiply
    11,409.80x = 17,107.37 × 4,750.91
  4. Step 4: Simplify right side
    11,409.80x = 81,275,547.88
  5. Step 5: Solve for x
    x = 81,275,547.88/11,409.80
  6. Step 6: Final answer
    x = 7,123.31

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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.