Home / 12,453.14-18,679.77-3,688.22

Finding the Fourth Proportional to 12,453.14, 18,679.77 and 3,688.22

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Solution

The fourth proportional to 12,453.14, 18,679.77 and 3,688.22 is: 5,532.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.14 : 18,679.77 = 3,688.22 : x
  2. Step 2: Convert to fraction form
    12,453.14/18,679.77 = 3,688.22/x
  3. Step 3: Cross multiply
    12,453.14x = 18,679.77 × 3,688.22
  4. Step 4: Simplify right side
    12,453.14x = 68,895,101.31
  5. Step 5: Solve for x
    x = 68,895,101.31/12,453.14
  6. Step 6: Final answer
    x = 5,532.35

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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.