Home / 12,631.44-18,947.72-4,839.68

Finding the Fourth Proportional to 12,631.44, 18,947.72 and 4,839.68

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Solution

The fourth proportional to 12,631.44, 18,947.72 and 4,839.68 is: 7,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.44 : 18,947.72 = 4,839.68 : x
  2. Step 2: Convert to fraction form
    12,631.44/18,947.72 = 4,839.68/x
  3. Step 3: Cross multiply
    12,631.44x = 18,947.72 × 4,839.68
  4. Step 4: Simplify right side
    12,631.44x = 91,700,901.53
  5. Step 5: Solve for x
    x = 91,700,901.53/12,631.44
  6. Step 6: Final answer
    x = 7,259.73

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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.