Home / 9,145.75-12,621.23-4,954.09

Finding the Fourth Proportional to 9,145.75, 12,621.23 and 4,954.09

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Solution

The fourth proportional to 9,145.75, 12,621.23 and 4,954.09 is: 6,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.75 : 12,621.23 = 4,954.09 : x
  2. Step 2: Convert to fraction form
    9,145.75/12,621.23 = 4,954.09/x
  3. Step 3: Cross multiply
    9,145.75x = 12,621.23 × 4,954.09
  4. Step 4: Simplify right side
    9,145.75x = 62,526,709.33
  5. Step 5: Solve for x
    x = 62,526,709.33/9,145.75
  6. Step 6: Final answer
    x = 6,836.70

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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.