Home / 12,260.96-16,917.56-7,779.44

Finding the Fourth Proportional to 12,260.96, 16,917.56 and 7,779.44

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Solution

The fourth proportional to 12,260.96, 16,917.56 and 7,779.44 is: 10,734.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.96 : 16,917.56 = 7,779.44 : x
  2. Step 2: Convert to fraction form
    12,260.96/16,917.56 = 7,779.44/x
  3. Step 3: Cross multiply
    12,260.96x = 16,917.56 × 7,779.44
  4. Step 4: Simplify right side
    12,260.96x = 131,609,142.97
  5. Step 5: Solve for x
    x = 131,609,142.97/12,260.96
  6. Step 6: Final answer
    x = 10,734.00

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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.