Home / 7,923.74-10,915.70-6,664.82

Finding the Fourth Proportional to 7,923.74, 10,915.70 and 6,664.82

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Solution

The fourth proportional to 7,923.74, 10,915.70 and 6,664.82 is: 9,181.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.74 : 10,915.70 = 6,664.82 : x
  2. Step 2: Convert to fraction form
    7,923.74/10,915.70 = 6,664.82/x
  3. Step 3: Cross multiply
    7,923.74x = 10,915.70 × 6,664.82
  4. Step 4: Simplify right side
    7,923.74x = 72,751,142.35
  5. Step 5: Solve for x
    x = 72,751,142.35/7,923.74
  6. Step 6: Final answer
    x = 9,181.41

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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.