Home / 7,845.12-11,765.48-2,298.72

Finding the Fourth Proportional to 7,845.12, 11,765.48 and 2,298.72

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Solution

The fourth proportional to 7,845.12, 11,765.48 and 2,298.72 is: 3,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.12 : 11,765.48 = 2,298.72 : x
  2. Step 2: Convert to fraction form
    7,845.12/11,765.48 = 2,298.72/x
  3. Step 3: Cross multiply
    7,845.12x = 11,765.48 × 2,298.72
  4. Step 4: Simplify right side
    7,845.12x = 27,045,544.19
  5. Step 5: Solve for x
    x = 27,045,544.19/7,845.12
  6. Step 6: Final answer
    x = 3,447.44

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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.