Home / 6,621.77-9,123.62-4,942.50

Finding the Fourth Proportional to 6,621.77, 9,123.62 and 4,942.50

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Solution

The fourth proportional to 6,621.77, 9,123.62 and 4,942.50 is: 6,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.77 : 9,123.62 = 4,942.50 : x
  2. Step 2: Convert to fraction form
    6,621.77/9,123.62 = 4,942.50/x
  3. Step 3: Cross multiply
    6,621.77x = 9,123.62 × 4,942.50
  4. Step 4: Simplify right side
    6,621.77x = 45,093,467.14
  5. Step 5: Solve for x
    x = 45,093,467.14/6,621.77
  6. Step 6: Final answer
    x = 6,809.89

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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.