Home / 12,205.44-16,840.32-7,727.04

Finding the Fourth Proportional to 12,205.44, 16,840.32 and 7,727.04

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Solution

The fourth proportional to 12,205.44, 16,840.32 and 7,727.04 is: 10,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.44 : 16,840.32 = 7,727.04 : x
  2. Step 2: Convert to fraction form
    12,205.44/16,840.32 = 7,727.04/x
  3. Step 3: Cross multiply
    12,205.44x = 16,840.32 × 7,727.04
  4. Step 4: Simplify right side
    12,205.44x = 130,125,826.25
  5. Step 5: Solve for x
    x = 130,125,826.25/12,205.44
  6. Step 6: Final answer
    x = 10,661.30

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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.