Home / 13,338.37-20,018.78-6,672.87

Finding the Fourth Proportional to 13,338.37, 20,018.78 and 6,672.87

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Solution

The fourth proportional to 13,338.37, 20,018.78 and 6,672.87 is: 10,014.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.37 : 20,018.78 = 6,672.87 : x
  2. Step 2: Convert to fraction form
    13,338.37/20,018.78 = 6,672.87/x
  3. Step 3: Cross multiply
    13,338.37x = 20,018.78 × 6,672.87
  4. Step 4: Simplify right side
    13,338.37x = 133,582,708.16
  5. Step 5: Solve for x
    x = 133,582,708.16/13,338.37
  6. Step 6: Final answer
    x = 10,014.92

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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.