Home / 7,678.74-11,524.59-5,305.44

Finding the Fourth Proportional to 7,678.74, 11,524.59 and 5,305.44

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Solution

The fourth proportional to 7,678.74, 11,524.59 and 5,305.44 is: 7,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.74 : 11,524.59 = 5,305.44 : x
  2. Step 2: Convert to fraction form
    7,678.74/11,524.59 = 5,305.44/x
  3. Step 3: Cross multiply
    7,678.74x = 11,524.59 × 5,305.44
  4. Step 4: Simplify right side
    7,678.74x = 61,142,936.62
  5. Step 5: Solve for x
    x = 61,142,936.62/7,678.74
  6. Step 6: Final answer
    x = 7,962.63

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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.