Home / 8,010.09-12,010.68-5,789.78

Finding the Fourth Proportional to 8,010.09, 12,010.68 and 5,789.78

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Solution

The fourth proportional to 8,010.09, 12,010.68 and 5,789.78 is: 8,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,010.09 : 12,010.68 = 5,789.78 : x
  2. Step 2: Convert to fraction form
    8,010.09/12,010.68 = 5,789.78/x
  3. Step 3: Cross multiply
    8,010.09x = 12,010.68 × 5,789.78
  4. Step 4: Simplify right side
    8,010.09x = 69,539,179.84
  5. Step 5: Solve for x
    x = 69,539,179.84/8,010.09
  6. Step 6: Final answer
    x = 8,681.45

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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.