Home / 8,455.44-12,685.23-2,908.86

Finding the Fourth Proportional to 8,455.44, 12,685.23 and 2,908.86

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Solution

The fourth proportional to 8,455.44, 12,685.23 and 2,908.86 is: 4,364.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.44 : 12,685.23 = 2,908.86 : x
  2. Step 2: Convert to fraction form
    8,455.44/12,685.23 = 2,908.86/x
  3. Step 3: Cross multiply
    8,455.44x = 12,685.23 × 2,908.86
  4. Step 4: Simplify right side
    8,455.44x = 36,899,558.14
  5. Step 5: Solve for x
    x = 36,899,558.14/8,455.44
  6. Step 6: Final answer
    x = 4,364.00

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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.