Home / 8,491.98-11,722.85-5,090.60

Finding the Fourth Proportional to 8,491.98, 11,722.85 and 5,090.60

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Solution

The fourth proportional to 8,491.98, 11,722.85 and 5,090.60 is: 7,027.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.98 : 11,722.85 = 5,090.60 : x
  2. Step 2: Convert to fraction form
    8,491.98/11,722.85 = 5,090.60/x
  3. Step 3: Cross multiply
    8,491.98x = 11,722.85 × 5,090.60
  4. Step 4: Simplify right side
    8,491.98x = 59,676,340.21
  5. Step 5: Solve for x
    x = 59,676,340.21/8,491.98
  6. Step 6: Final answer
    x = 7,027.38

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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.