Home / 8,685.57-13,028.97-3,491.46

Finding the Fourth Proportional to 8,685.57, 13,028.97 and 3,491.46

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Solution

The fourth proportional to 8,685.57, 13,028.97 and 3,491.46 is: 5,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.57 : 13,028.97 = 3,491.46 : x
  2. Step 2: Convert to fraction form
    8,685.57/13,028.97 = 3,491.46/x
  3. Step 3: Cross multiply
    8,685.57x = 13,028.97 × 3,491.46
  4. Step 4: Simplify right side
    8,685.57x = 45,490,127.60
  5. Step 5: Solve for x
    x = 45,490,127.60/8,685.57
  6. Step 6: Final answer
    x = 5,237.44

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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.