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Finding the Fourth Proportional to 9,206.80, 13,810.20 and 5,270.20

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Solution

The fourth proportional to 9,206.80, 13,810.20 and 5,270.20 is: 7,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.80 : 13,810.20 = 5,270.20 : x
  2. Step 2: Convert to fraction form
    9,206.80/13,810.20 = 5,270.20/x
  3. Step 3: Cross multiply
    9,206.80x = 13,810.20 × 5,270.20
  4. Step 4: Simplify right side
    9,206.80x = 72,782,516.04
  5. Step 5: Solve for x
    x = 72,782,516.04/9,206.80
  6. Step 6: Final answer
    x = 7,905.30

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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.