Home / 8,580.38-11,845.58-5,394.65

Finding the Fourth Proportional to 8,580.38, 11,845.58 and 5,394.65

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Solution

The fourth proportional to 8,580.38, 11,845.58 and 5,394.65 is: 7,447.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.38 : 11,845.58 = 5,394.65 : x
  2. Step 2: Convert to fraction form
    8,580.38/11,845.58 = 5,394.65/x
  3. Step 3: Cross multiply
    8,580.38x = 11,845.58 × 5,394.65
  4. Step 4: Simplify right side
    8,580.38x = 63,902,671.95
  5. Step 5: Solve for x
    x = 63,902,671.95/8,580.38
  6. Step 6: Final answer
    x = 7,447.54

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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.