Home / 7,639.87-11,458.98-4,717.39

Finding the Fourth Proportional to 7,639.87, 11,458.98 and 4,717.39

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Solution

The fourth proportional to 7,639.87, 11,458.98 and 4,717.39 is: 7,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.87 : 11,458.98 = 4,717.39 : x
  2. Step 2: Convert to fraction form
    7,639.87/11,458.98 = 4,717.39/x
  3. Step 3: Cross multiply
    7,639.87x = 11,458.98 × 4,717.39
  4. Step 4: Simplify right side
    7,639.87x = 54,056,477.66
  5. Step 5: Solve for x
    x = 54,056,477.66/7,639.87
  6. Step 6: Final answer
    x = 7,075.58

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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.