Home / 13,601.16-20,382.30-7,745.67

Finding the Fourth Proportional to 13,601.16, 20,382.30 and 7,745.67

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Solution

The fourth proportional to 13,601.16, 20,382.30 and 7,745.67 is: 11,607.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.16 : 20,382.30 = 7,745.67 : x
  2. Step 2: Convert to fraction form
    13,601.16/20,382.30 = 7,745.67/x
  3. Step 3: Cross multiply
    13,601.16x = 20,382.30 × 7,745.67
  4. Step 4: Simplify right side
    13,601.16x = 157,874,569.64
  5. Step 5: Solve for x
    x = 157,874,569.64/13,601.16
  6. Step 6: Final answer
    x = 11,607.43

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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.