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Finding the Fourth Proportional to 8,369.16, 12,554.72 and 2,820.60

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Solution

The fourth proportional to 8,369.16, 12,554.72 and 2,820.60 is: 4,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.16 : 12,554.72 = 2,820.60 : x
  2. Step 2: Convert to fraction form
    8,369.16/12,554.72 = 2,820.60/x
  3. Step 3: Cross multiply
    8,369.16x = 12,554.72 × 2,820.60
  4. Step 4: Simplify right side
    8,369.16x = 35,411,843.23
  5. Step 5: Solve for x
    x = 35,411,843.23/8,369.16
  6. Step 6: Final answer
    x = 4,231.23

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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.