Home / 14,008.96-21,013.38-3,620.68

Finding the Fourth Proportional to 14,008.96, 21,013.38 and 3,620.68

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Solution

The fourth proportional to 14,008.96, 21,013.38 and 3,620.68 is: 5,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.96 : 21,013.38 = 3,620.68 : x
  2. Step 2: Convert to fraction form
    14,008.96/21,013.38 = 3,620.68/x
  3. Step 3: Cross multiply
    14,008.96x = 21,013.38 × 3,620.68
  4. Step 4: Simplify right side
    14,008.96x = 76,082,724.70
  5. Step 5: Solve for x
    x = 76,082,724.70/14,008.96
  6. Step 6: Final answer
    x = 5,431.00

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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.