Home / 14,119-21,172.32-4,756.50

Finding the Fourth Proportional to 14,119, 21,172.32 and 4,756.50

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Solution

The fourth proportional to 14,119, 21,172.32 and 4,756.50 is: 7,132.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119 : 21,172.32 = 4,756.50 : x
  2. Step 2: Convert to fraction form
    14,119/21,172.32 = 4,756.50/x
  3. Step 3: Cross multiply
    14,119x = 21,172.32 × 4,756.50
  4. Step 4: Simplify right side
    14,119x = 100,706,140.08
  5. Step 5: Solve for x
    x = 100,706,140.08/14,119
  6. Step 6: Final answer
    x = 7,132.67

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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.