Home / 13,260.30-19,892.87-5,469.72

Finding the Fourth Proportional to 13,260.30, 19,892.87 and 5,469.72

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Solution

The fourth proportional to 13,260.30, 19,892.87 and 5,469.72 is: 8,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.30 : 19,892.87 = 5,469.72 : x
  2. Step 2: Convert to fraction form
    13,260.30/19,892.87 = 5,469.72/x
  3. Step 3: Cross multiply
    13,260.30x = 19,892.87 × 5,469.72
  4. Step 4: Simplify right side
    13,260.30x = 108,808,428.90
  5. Step 5: Solve for x
    x = 108,808,428.90/13,260.30
  6. Step 6: Final answer
    x = 8,205.58

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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.