Home / 7,825.06-11,737.60-1,981.67

Finding the Fourth Proportional to 7,825.06, 11,737.60 and 1,981.67

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Solution

The fourth proportional to 7,825.06, 11,737.60 and 1,981.67 is: 2,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.06 : 11,737.60 = 1,981.67 : x
  2. Step 2: Convert to fraction form
    7,825.06/11,737.60 = 1,981.67/x
  3. Step 3: Cross multiply
    7,825.06x = 11,737.60 × 1,981.67
  4. Step 4: Simplify right side
    7,825.06x = 23,259,986.15
  5. Step 5: Solve for x
    x = 23,259,986.15/7,825.06
  6. Step 6: Final answer
    x = 2,972.50

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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.