Home / 12,400.49-18,600.84-3,635.55

Finding the Fourth Proportional to 12,400.49, 18,600.84 and 3,635.55

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Solution

The fourth proportional to 12,400.49, 18,600.84 and 3,635.55 is: 5,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.49 : 18,600.84 = 3,635.55 : x
  2. Step 2: Convert to fraction form
    12,400.49/18,600.84 = 3,635.55/x
  3. Step 3: Cross multiply
    12,400.49x = 18,600.84 × 3,635.55
  4. Step 4: Simplify right side
    12,400.49x = 67,624,283.86
  5. Step 5: Solve for x
    x = 67,624,283.86/12,400.49
  6. Step 6: Final answer
    x = 5,453.35

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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.