Home / 10,143.73-15,211.44-4,216.56

Finding the Fourth Proportional to 10,143.73, 15,211.44 and 4,216.56

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Solution

The fourth proportional to 10,143.73, 15,211.44 and 4,216.56 is: 6,323.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.73 : 15,211.44 = 4,216.56 : x
  2. Step 2: Convert to fraction form
    10,143.73/15,211.44 = 4,216.56/x
  3. Step 3: Cross multiply
    10,143.73x = 15,211.44 × 4,216.56
  4. Step 4: Simplify right side
    10,143.73x = 64,139,949.45
  5. Step 5: Solve for x
    x = 64,139,949.45/10,143.73
  6. Step 6: Final answer
    x = 6,323.11

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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.