Home / 7,867.08-11,803.14-3,915.72

Finding the Fourth Proportional to 7,867.08, 11,803.14 and 3,915.72

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Solution

The fourth proportional to 7,867.08, 11,803.14 and 3,915.72 is: 5,874.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.08 : 11,803.14 = 3,915.72 : x
  2. Step 2: Convert to fraction form
    7,867.08/11,803.14 = 3,915.72/x
  3. Step 3: Cross multiply
    7,867.08x = 11,803.14 × 3,915.72
  4. Step 4: Simplify right side
    7,867.08x = 46,217,791.36
  5. Step 5: Solve for x
    x = 46,217,791.36/7,867.08
  6. Step 6: Final answer
    x = 5,874.83

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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.