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Finding the Fourth Proportional to 8,657.66, 12,998.58 and 4,443.86

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Solution

The fourth proportional to 8,657.66, 12,998.58 and 4,443.86 is: 6,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.66 : 12,998.58 = 4,443.86 : x
  2. Step 2: Convert to fraction form
    8,657.66/12,998.58 = 4,443.86/x
  3. Step 3: Cross multiply
    8,657.66x = 12,998.58 × 4,443.86
  4. Step 4: Simplify right side
    8,657.66x = 57,763,869.72
  5. Step 5: Solve for x
    x = 57,763,869.72/8,657.66
  6. Step 6: Final answer
    x = 6,672.00

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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.