Home / 8,178.67-12,268.08-3,495.75

Finding the Fourth Proportional to 8,178.67, 12,268.08 and 3,495.75

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Solution

The fourth proportional to 8,178.67, 12,268.08 and 3,495.75 is: 5,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.67 : 12,268.08 = 3,495.75 : x
  2. Step 2: Convert to fraction form
    8,178.67/12,268.08 = 3,495.75/x
  3. Step 3: Cross multiply
    8,178.67x = 12,268.08 × 3,495.75
  4. Step 4: Simplify right side
    8,178.67x = 42,886,140.66
  5. Step 5: Solve for x
    x = 42,886,140.66/8,178.67
  6. Step 6: Final answer
    x = 5,243.66

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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.