Home / 14,082.88-21,128.30-7,054.41

Finding the Fourth Proportional to 14,082.88, 21,128.30 and 7,054.41

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Solution

The fourth proportional to 14,082.88, 21,128.30 and 7,054.41 is: 10,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,082.88 : 21,128.30 = 7,054.41 : x
  2. Step 2: Convert to fraction form
    14,082.88/21,128.30 = 7,054.41/x
  3. Step 3: Cross multiply
    14,082.88x = 21,128.30 × 7,054.41
  4. Step 4: Simplify right side
    14,082.88x = 149,047,690.80
  5. Step 5: Solve for x
    x = 149,047,690.80/14,082.88
  6. Step 6: Final answer
    x = 10,583.61

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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.