Home / 7,825.19-11,741.63-3,145.01

Finding the Fourth Proportional to 7,825.19, 11,741.63 and 3,145.01

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Solution

The fourth proportional to 7,825.19, 11,741.63 and 3,145.01 is: 4,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.19 : 11,741.63 = 3,145.01 : x
  2. Step 2: Convert to fraction form
    7,825.19/11,741.63 = 3,145.01/x
  3. Step 3: Cross multiply
    7,825.19x = 11,741.63 × 3,145.01
  4. Step 4: Simplify right side
    7,825.19x = 36,927,469.33
  5. Step 5: Solve for x
    x = 36,927,469.33/7,825.19
  6. Step 6: Final answer
    x = 4,719.05

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1.5x scale

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.