Home / 14,052.80-21,071.10-5,288.60

Finding the Fourth Proportional to 14,052.80, 21,071.10 and 5,288.60

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Solution

The fourth proportional to 14,052.80, 21,071.10 and 5,288.60 is: 7,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.80 : 21,071.10 = 5,288.60 : x
  2. Step 2: Convert to fraction form
    14,052.80/21,071.10 = 5,288.60/x
  3. Step 3: Cross multiply
    14,052.80x = 21,071.10 × 5,288.60
  4. Step 4: Simplify right side
    14,052.80x = 111,436,619.46
  5. Step 5: Solve for x
    x = 111,436,619.46/14,052.80
  6. Step 6: Final answer
    x = 7,929.85

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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.