Home / 14,147.03-21,220-4,787.75

Finding the Fourth Proportional to 14,147.03, 21,220 and 4,787.75

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Solution

The fourth proportional to 14,147.03, 21,220 and 4,787.75 is: 7,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.03 : 21,220 = 4,787.75 : x
  2. Step 2: Convert to fraction form
    14,147.03/21,220 = 4,787.75/x
  3. Step 3: Cross multiply
    14,147.03x = 21,220 × 4,787.75
  4. Step 4: Simplify right side
    14,147.03x = 101,596,055
  5. Step 5: Solve for x
    x = 101,596,055/14,147.03
  6. Step 6: Final answer
    x = 7,181.44

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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.