Home / 14,343.09-21,515.57-3,812.95

Finding the Fourth Proportional to 14,343.09, 21,515.57 and 3,812.95

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Solution

The fourth proportional to 14,343.09, 21,515.57 and 3,812.95 is: 5,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.09 : 21,515.57 = 3,812.95 : x
  2. Step 2: Convert to fraction form
    14,343.09/21,515.57 = 3,812.95/x
  3. Step 3: Cross multiply
    14,343.09x = 21,515.57 × 3,812.95
  4. Step 4: Simplify right side
    14,343.09x = 82,037,792.63
  5. Step 5: Solve for x
    x = 82,037,792.63/14,343.09
  6. Step 6: Final answer
    x = 5,719.67

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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.