Home / 14,087.16-21,129.12-5,322.96

Finding the Fourth Proportional to 14,087.16, 21,129.12 and 5,322.96

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Solution

The fourth proportional to 14,087.16, 21,129.12 and 5,322.96 is: 7,983.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.16 : 21,129.12 = 5,322.96 : x
  2. Step 2: Convert to fraction form
    14,087.16/21,129.12 = 5,322.96/x
  3. Step 3: Cross multiply
    14,087.16x = 21,129.12 × 5,322.96
  4. Step 4: Simplify right side
    14,087.16x = 112,469,460.60
  5. Step 5: Solve for x
    x = 112,469,460.60/14,087.16
  6. Step 6: Final answer
    x = 7,983.83

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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.