Home / 7,428.75-11,135.62-4,657.37

Finding the Fourth Proportional to 7,428.75, 11,135.62 and 4,657.37

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Solution

The fourth proportional to 7,428.75, 11,135.62 and 4,657.37 is: 6,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.75 : 11,135.62 = 4,657.37 : x
  2. Step 2: Convert to fraction form
    7,428.75/11,135.62 = 4,657.37/x
  3. Step 3: Cross multiply
    7,428.75x = 11,135.62 × 4,657.37
  4. Step 4: Simplify right side
    7,428.75x = 51,862,639.56
  5. Step 5: Solve for x
    x = 51,862,639.56/7,428.75
  6. Step 6: Final answer
    x = 6,981.34

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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.