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Finding the Fourth Proportional to 10,080.45, 15,102.45 and 8,622.45

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Solution

The fourth proportional to 10,080.45, 15,102.45 and 8,622.45 is: 12,918.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.45 : 15,102.45 = 8,622.45 : x
  2. Step 2: Convert to fraction form
    10,080.45/15,102.45 = 8,622.45/x
  3. Step 3: Cross multiply
    10,080.45x = 15,102.45 × 8,622.45
  4. Step 4: Simplify right side
    10,080.45x = 130,220,120.00
  5. Step 5: Solve for x
    x = 130,220,120.00/10,080.45
  6. Step 6: Final answer
    x = 12,918.09

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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.