Home / 12,647.70-18,974.24-4,856.45

Finding the Fourth Proportional to 12,647.70, 18,974.24 and 4,856.45

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Solution

The fourth proportional to 12,647.70, 18,974.24 and 4,856.45 is: 7,285.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.70 : 18,974.24 = 4,856.45 : x
  2. Step 2: Convert to fraction form
    12,647.70/18,974.24 = 4,856.45/x
  3. Step 3: Cross multiply
    12,647.70x = 18,974.24 × 4,856.45
  4. Step 4: Simplify right side
    12,647.70x = 92,147,328.69
  5. Step 5: Solve for x
    x = 92,147,328.69/12,647.70
  6. Step 6: Final answer
    x = 7,285.70

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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.