Home / 7,915.58-11,877.42-3,239.05

Finding the Fourth Proportional to 7,915.58, 11,877.42 and 3,239.05

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Solution

The fourth proportional to 7,915.58, 11,877.42 and 3,239.05 is: 4,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.58 : 11,877.42 = 3,239.05 : x
  2. Step 2: Convert to fraction form
    7,915.58/11,877.42 = 3,239.05/x
  3. Step 3: Cross multiply
    7,915.58x = 11,877.42 × 3,239.05
  4. Step 4: Simplify right side
    7,915.58x = 38,471,557.25
  5. Step 5: Solve for x
    x = 38,471,557.25/7,915.58
  6. Step 6: Final answer
    x = 4,860.23

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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.