Home / 11,942.74-16,485.58-7,962.40

Finding the Fourth Proportional to 11,942.74, 16,485.58 and 7,962.40

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Solution

The fourth proportional to 11,942.74, 16,485.58 and 7,962.40 is: 10,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.74 : 16,485.58 = 7,962.40 : x
  2. Step 2: Convert to fraction form
    11,942.74/16,485.58 = 7,962.40/x
  3. Step 3: Cross multiply
    11,942.74x = 16,485.58 × 7,962.40
  4. Step 4: Simplify right side
    11,942.74x = 131,264,767.96
  5. Step 5: Solve for x
    x = 131,264,767.96/11,942.74
  6. Step 6: Final answer
    x = 10,991.18

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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.