Home / 14,148.28-21,222.35-3,618.29

Finding the Fourth Proportional to 14,148.28, 21,222.35 and 3,618.29

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Solution

The fourth proportional to 14,148.28, 21,222.35 and 3,618.29 is: 5,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.28 : 21,222.35 = 3,618.29 : x
  2. Step 2: Convert to fraction form
    14,148.28/21,222.35 = 3,618.29/x
  3. Step 3: Cross multiply
    14,148.28x = 21,222.35 × 3,618.29
  4. Step 4: Simplify right side
    14,148.28x = 76,788,558.43
  5. Step 5: Solve for x
    x = 76,788,558.43/14,148.28
  6. Step 6: Final answer
    x = 5,427.41

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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.