Home / 14,386.88-21,576.48-3,999.20

Finding the Fourth Proportional to 14,386.88, 21,576.48 and 3,999.20

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Solution

The fourth proportional to 14,386.88, 21,576.48 and 3,999.20 is: 5,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.88 : 21,576.48 = 3,999.20 : x
  2. Step 2: Convert to fraction form
    14,386.88/21,576.48 = 3,999.20/x
  3. Step 3: Cross multiply
    14,386.88x = 21,576.48 × 3,999.20
  4. Step 4: Simplify right side
    14,386.88x = 86,288,658.82
  5. Step 5: Solve for x
    x = 86,288,658.82/14,386.88
  6. Step 6: Final answer
    x = 5,997.73

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1.5x scale

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.