Home / 8,455.25-11,669.67-4,920.55

Finding the Fourth Proportional to 8,455.25, 11,669.67 and 4,920.55

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Solution

The fourth proportional to 8,455.25, 11,669.67 and 4,920.55 is: 6,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.25 : 11,669.67 = 4,920.55 : x
  2. Step 2: Convert to fraction form
    8,455.25/11,669.67 = 4,920.55/x
  3. Step 3: Cross multiply
    8,455.25x = 11,669.67 × 4,920.55
  4. Step 4: Simplify right side
    8,455.25x = 57,421,165.54
  5. Step 5: Solve for x
    x = 57,421,165.54/8,455.25
  6. Step 6: Final answer
    x = 6,791.18

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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.