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Finding the Fourth Proportional to 13,195.90, 19,800.08 and 6,626.70

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Solution

The fourth proportional to 13,195.90, 19,800.08 and 6,626.70 is: 9,943.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.90 : 19,800.08 = 6,626.70 : x
  2. Step 2: Convert to fraction form
    13,195.90/19,800.08 = 6,626.70/x
  3. Step 3: Cross multiply
    13,195.90x = 19,800.08 × 6,626.70
  4. Step 4: Simplify right side
    13,195.90x = 131,209,190.14
  5. Step 5: Solve for x
    x = 131,209,190.14/13,195.90
  6. Step 6: Final answer
    x = 9,943.18

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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.