Home / 13,623.77-20,443.55-5,725.67

Finding the Fourth Proportional to 13,623.77, 20,443.55 and 5,725.67

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Solution

The fourth proportional to 13,623.77, 20,443.55 and 5,725.67 is: 8,591.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.77 : 20,443.55 = 5,725.67 : x
  2. Step 2: Convert to fraction form
    13,623.77/20,443.55 = 5,725.67/x
  3. Step 3: Cross multiply
    13,623.77x = 20,443.55 × 5,725.67
  4. Step 4: Simplify right side
    13,623.77x = 117,052,890.08
  5. Step 5: Solve for x
    x = 117,052,890.08/13,623.77
  6. Step 6: Final answer
    x = 8,591.81

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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.