Home / 12,292.49-18,440.55-3,969.74

Finding the Fourth Proportional to 12,292.49, 18,440.55 and 3,969.74

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Solution

The fourth proportional to 12,292.49, 18,440.55 and 3,969.74 is: 5,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292.49 : 18,440.55 = 3,969.74 : x
  2. Step 2: Convert to fraction form
    12,292.49/18,440.55 = 3,969.74/x
  3. Step 3: Cross multiply
    12,292.49x = 18,440.55 × 3,969.74
  4. Step 4: Simplify right side
    12,292.49x = 73,204,235.06
  5. Step 5: Solve for x
    x = 73,204,235.06/12,292.49
  6. Step 6: Final answer
    x = 5,955.20

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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.