Home / 7,981.48-11,961.66-6,125.50

Finding the Fourth Proportional to 7,981.48, 11,961.66 and 6,125.50

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Solution

The fourth proportional to 7,981.48, 11,961.66 and 6,125.50 is: 9,180.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.48 : 11,961.66 = 6,125.50 : x
  2. Step 2: Convert to fraction form
    7,981.48/11,961.66 = 6,125.50/x
  3. Step 3: Cross multiply
    7,981.48x = 11,961.66 × 6,125.50
  4. Step 4: Simplify right side
    7,981.48x = 73,271,148.33
  5. Step 5: Solve for x
    x = 73,271,148.33/7,981.48
  6. Step 6: Final answer
    x = 9,180.15

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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.