Home / 7,915.48-11,872.38-2,071.32

Finding the Fourth Proportional to 7,915.48, 11,872.38 and 2,071.32

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Solution

The fourth proportional to 7,915.48, 11,872.38 and 2,071.32 is: 3,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.48 : 11,872.38 = 2,071.32 : x
  2. Step 2: Convert to fraction form
    7,915.48/11,872.38 = 2,071.32/x
  3. Step 3: Cross multiply
    7,915.48x = 11,872.38 × 2,071.32
  4. Step 4: Simplify right side
    7,915.48x = 24,591,498.14
  5. Step 5: Solve for x
    x = 24,591,498.14/7,915.48
  6. Step 6: Final answer
    x = 3,106.76

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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.