Home / 14,078.30-21,122.15-4,719.25

Finding the Fourth Proportional to 14,078.30, 21,122.15 and 4,719.25

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Solution

The fourth proportional to 14,078.30, 21,122.15 and 4,719.25 is: 7,080.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.30 : 21,122.15 = 4,719.25 : x
  2. Step 2: Convert to fraction form
    14,078.30/21,122.15 = 4,719.25/x
  3. Step 3: Cross multiply
    14,078.30x = 21,122.15 × 4,719.25
  4. Step 4: Simplify right side
    14,078.30x = 99,680,629.99
  5. Step 5: Solve for x
    x = 99,680,629.99/14,078.30
  6. Step 6: Final answer
    x = 7,080.44

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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.