Home / 11,351.70-15,662.80-6,875.37

Finding the Fourth Proportional to 11,351.70, 15,662.80 and 6,875.37

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Solution

The fourth proportional to 11,351.70, 15,662.80 and 6,875.37 is: 9,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.70 : 15,662.80 = 6,875.37 : x
  2. Step 2: Convert to fraction form
    11,351.70/15,662.80 = 6,875.37/x
  3. Step 3: Cross multiply
    11,351.70x = 15,662.80 × 6,875.37
  4. Step 4: Simplify right side
    11,351.70x = 107,687,553.83
  5. Step 5: Solve for x
    x = 107,687,553.83/11,351.70
  6. Step 6: Final answer
    x = 9,486.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.