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Finding the Fourth Proportional to 13,339, 20,004.72 and 5,538.16

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Solution

The fourth proportional to 13,339, 20,004.72 and 5,538.16 is: 8,305.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339 : 20,004.72 = 5,538.16 : x
  2. Step 2: Convert to fraction form
    13,339/20,004.72 = 5,538.16/x
  3. Step 3: Cross multiply
    13,339x = 20,004.72 × 5,538.16
  4. Step 4: Simplify right side
    13,339x = 110,789,340.12
  5. Step 5: Solve for x
    x = 110,789,340.12/13,339
  6. Step 6: Final answer
    x = 8,305.67

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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.