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Finding the Fourth Proportional to 8,994.64, 12,427.84 and 6,471.76

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Solution

The fourth proportional to 8,994.64, 12,427.84 and 6,471.76 is: 8,941.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.64 : 12,427.84 = 6,471.76 : x
  2. Step 2: Convert to fraction form
    8,994.64/12,427.84 = 6,471.76/x
  3. Step 3: Cross multiply
    8,994.64x = 12,427.84 × 6,471.76
  4. Step 4: Simplify right side
    8,994.64x = 80,429,981.62
  5. Step 5: Solve for x
    x = 80,429,981.62/8,994.64
  6. Step 6: Final answer
    x = 8,941.99

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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.