Home / 7,975.18-11,951.82-4,071.40

Finding the Fourth Proportional to 7,975.18, 11,951.82 and 4,071.40

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Solution

The fourth proportional to 7,975.18, 11,951.82 and 4,071.40 is: 6,101.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.18 : 11,951.82 = 4,071.40 : x
  2. Step 2: Convert to fraction form
    7,975.18/11,951.82 = 4,071.40/x
  3. Step 3: Cross multiply
    7,975.18x = 11,951.82 × 4,071.40
  4. Step 4: Simplify right side
    7,975.18x = 48,660,639.95
  5. Step 5: Solve for x
    x = 48,660,639.95/7,975.18
  6. Step 6: Final answer
    x = 6,101.51

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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.