Home / 7,826.30-11,739.43-3,146.30

Finding the Fourth Proportional to 7,826.30, 11,739.43 and 3,146.30

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Solution

The fourth proportional to 7,826.30, 11,739.43 and 3,146.30 is: 4,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.30 : 11,739.43 = 3,146.30 : x
  2. Step 2: Convert to fraction form
    7,826.30/11,739.43 = 3,146.30/x
  3. Step 3: Cross multiply
    7,826.30x = 11,739.43 × 3,146.30
  4. Step 4: Simplify right side
    7,826.30x = 36,935,768.61
  5. Step 5: Solve for x
    x = 36,935,768.61/7,826.30
  6. Step 6: Final answer
    x = 4,719.44

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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.