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Finding the Fourth Proportional to 8,765.95, 12,098.04 and 4,989.73

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Solution

The fourth proportional to 8,765.95, 12,098.04 and 4,989.73 is: 6,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.95 : 12,098.04 = 4,989.73 : x
  2. Step 2: Convert to fraction form
    8,765.95/12,098.04 = 4,989.73/x
  3. Step 3: Cross multiply
    8,765.95x = 12,098.04 × 4,989.73
  4. Step 4: Simplify right side
    8,765.95x = 60,365,953.13
  5. Step 5: Solve for x
    x = 60,365,953.13/8,765.95
  6. Step 6: Final answer
    x = 6,886.41

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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.