Home / 14,076.99-21,120.14-4,721.42

Finding the Fourth Proportional to 14,076.99, 21,120.14 and 4,721.42

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Solution

The fourth proportional to 14,076.99, 21,120.14 and 4,721.42 is: 7,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.99 : 21,120.14 = 4,721.42 : x
  2. Step 2: Convert to fraction form
    14,076.99/21,120.14 = 4,721.42/x
  3. Step 3: Cross multiply
    14,076.99x = 21,120.14 × 4,721.42
  4. Step 4: Simplify right side
    14,076.99x = 99,717,116.00
  5. Step 5: Solve for x
    x = 99,717,116.00/14,076.99
  6. Step 6: Final answer
    x = 7,083.70

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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.