Home / 14,343.28-21,513.53-3,813.55

Finding the Fourth Proportional to 14,343.28, 21,513.53 and 3,813.55

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Solution

The fourth proportional to 14,343.28, 21,513.53 and 3,813.55 is: 5,719.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.28 : 21,513.53 = 3,813.55 : x
  2. Step 2: Convert to fraction form
    14,343.28/21,513.53 = 3,813.55/x
  3. Step 3: Cross multiply
    14,343.28x = 21,513.53 × 3,813.55
  4. Step 4: Simplify right side
    14,343.28x = 82,042,878.08
  5. Step 5: Solve for x
    x = 82,042,878.08/14,343.28
  6. Step 6: Final answer
    x = 5,719.95

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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.