Home / 12,305.07-16,977.74-6,999.03

Finding the Fourth Proportional to 12,305.07, 16,977.74 and 6,999.03

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Solution

The fourth proportional to 12,305.07, 16,977.74 and 6,999.03 is: 9,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.07 : 16,977.74 = 6,999.03 : x
  2. Step 2: Convert to fraction form
    12,305.07/16,977.74 = 6,999.03/x
  3. Step 3: Cross multiply
    12,305.07x = 16,977.74 × 6,999.03
  4. Step 4: Simplify right side
    12,305.07x = 118,827,676.60
  5. Step 5: Solve for x
    x = 118,827,676.60/12,305.07
  6. Step 6: Final answer
    x = 9,656.81

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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.