Home / 6,690.12-9,236.66-4,918.68

Finding the Fourth Proportional to 6,690.12, 9,236.66 and 4,918.68

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Solution

The fourth proportional to 6,690.12, 9,236.66 and 4,918.68 is: 6,790.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.12 : 9,236.66 = 4,918.68 : x
  2. Step 2: Convert to fraction form
    6,690.12/9,236.66 = 4,918.68/x
  3. Step 3: Cross multiply
    6,690.12x = 9,236.66 × 4,918.68
  4. Step 4: Simplify right side
    6,690.12x = 45,432,174.81
  5. Step 5: Solve for x
    x = 45,432,174.81/6,690.12
  6. Step 6: Final answer
    x = 6,790.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.