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Finding the Fourth Proportional to 8,392.94, 12,565.72 and 4,435.23

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Solution

The fourth proportional to 8,392.94, 12,565.72 and 4,435.23 is: 6,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.94 : 12,565.72 = 4,435.23 : x
  2. Step 2: Convert to fraction form
    8,392.94/12,565.72 = 4,435.23/x
  3. Step 3: Cross multiply
    8,392.94x = 12,565.72 × 4,435.23
  4. Step 4: Simplify right side
    8,392.94x = 55,731,858.32
  5. Step 5: Solve for x
    x = 55,731,858.32/8,392.94
  6. Step 6: Final answer
    x = 6,640.33

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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.