Home / 7,827.60-11,733.20-2,631.68

Finding the Fourth Proportional to 7,827.60, 11,733.20 and 2,631.68

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Solution

The fourth proportional to 7,827.60, 11,733.20 and 2,631.68 is: 3,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.60 : 11,733.20 = 2,631.68 : x
  2. Step 2: Convert to fraction form
    7,827.60/11,733.20 = 2,631.68/x
  3. Step 3: Cross multiply
    7,827.60x = 11,733.20 × 2,631.68
  4. Step 4: Simplify right side
    7,827.60x = 30,878,027.78
  5. Step 5: Solve for x
    x = 30,878,027.78/7,827.60
  6. Step 6: Final answer
    x = 3,944.76

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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.