Home / 8,664.30-11,956.78-4,685.40

Finding the Fourth Proportional to 8,664.30, 11,956.78 and 4,685.40

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Solution

The fourth proportional to 8,664.30, 11,956.78 and 4,685.40 is: 6,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.30 : 11,956.78 = 4,685.40 : x
  2. Step 2: Convert to fraction form
    8,664.30/11,956.78 = 4,685.40/x
  3. Step 3: Cross multiply
    8,664.30x = 11,956.78 × 4,685.40
  4. Step 4: Simplify right side
    8,664.30x = 56,022,285.30
  5. Step 5: Solve for x
    x = 56,022,285.30/8,664.30
  6. Step 6: Final answer
    x = 6,465.88

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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.