Home / 14,005.31-21,011.00-4,145.28

Finding the Fourth Proportional to 14,005.31, 21,011.00 and 4,145.28

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Solution

The fourth proportional to 14,005.31, 21,011.00 and 4,145.28 is: 6,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.31 : 21,011.00 = 4,145.28 : x
  2. Step 2: Convert to fraction form
    14,005.31/21,011.00 = 4,145.28/x
  3. Step 3: Cross multiply
    14,005.31x = 21,011.00 × 4,145.28
  4. Step 4: Simplify right side
    14,005.31x = 87,096,378.56
  5. Step 5: Solve for x
    x = 87,096,378.56/14,005.31
  6. Step 6: Final answer
    x = 6,218.81

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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.