Home / 15,981.94-23,973.14-6,121.72

Finding the Fourth Proportional to 15,981.94, 23,973.14 and 6,121.72

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Solution

The fourth proportional to 15,981.94, 23,973.14 and 6,121.72 is: 9,182.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.94 : 23,973.14 = 6,121.72 : x
  2. Step 2: Convert to fraction form
    15,981.94/23,973.14 = 6,121.72/x
  3. Step 3: Cross multiply
    15,981.94x = 23,973.14 × 6,121.72
  4. Step 4: Simplify right side
    15,981.94x = 146,756,850.60
  5. Step 5: Solve for x
    x = 146,756,850.60/15,981.94
  6. Step 6: Final answer
    x = 9,182.67

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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.