Home / 14,083.30-21,129.18-4,222.90

Finding the Fourth Proportional to 14,083.30, 21,129.18 and 4,222.90

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Solution

The fourth proportional to 14,083.30, 21,129.18 and 4,222.90 is: 6,335.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.30 : 21,129.18 = 4,222.90 : x
  2. Step 2: Convert to fraction form
    14,083.30/21,129.18 = 4,222.90/x
  3. Step 3: Cross multiply
    14,083.30x = 21,129.18 × 4,222.90
  4. Step 4: Simplify right side
    14,083.30x = 89,226,414.22
  5. Step 5: Solve for x
    x = 89,226,414.22/14,083.30
  6. Step 6: Final answer
    x = 6,335.62

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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.