Home / 7,112.37-9,815.52-4,718.14

Finding the Fourth Proportional to 7,112.37, 9,815.52 and 4,718.14

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Solution

The fourth proportional to 7,112.37, 9,815.52 and 4,718.14 is: 6,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.37 : 9,815.52 = 4,718.14 : x
  2. Step 2: Convert to fraction form
    7,112.37/9,815.52 = 4,718.14/x
  3. Step 3: Cross multiply
    7,112.37x = 9,815.52 × 4,718.14
  4. Step 4: Simplify right side
    7,112.37x = 46,310,997.53
  5. Step 5: Solve for x
    x = 46,310,997.53/7,112.37
  6. Step 6: Final answer
    x = 6,511.33

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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.