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Finding the Fourth Proportional to 8,800.30, 12,144.36 and 4,821.40

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Solution

The fourth proportional to 8,800.30, 12,144.36 and 4,821.40 is: 6,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.30 : 12,144.36 = 4,821.40 : x
  2. Step 2: Convert to fraction form
    8,800.30/12,144.36 = 4,821.40/x
  3. Step 3: Cross multiply
    8,800.30x = 12,144.36 × 4,821.40
  4. Step 4: Simplify right side
    8,800.30x = 58,552,817.30
  5. Step 5: Solve for x
    x = 58,552,817.30/8,800.30
  6. Step 6: Final answer
    x = 6,653.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.