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Finding the Fourth Proportional to 8,898.98, 12,280.20 and 4,865.73

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Solution

The fourth proportional to 8,898.98, 12,280.20 and 4,865.73 is: 6,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.98 : 12,280.20 = 4,865.73 : x
  2. Step 2: Convert to fraction form
    8,898.98/12,280.20 = 4,865.73/x
  3. Step 3: Cross multiply
    8,898.98x = 12,280.20 × 4,865.73
  4. Step 4: Simplify right side
    8,898.98x = 59,752,137.55
  5. Step 5: Solve for x
    x = 59,752,137.55/8,898.98
  6. Step 6: Final answer
    x = 6,714.50

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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.