Home / 14,288.76-21,431.52-3,898.08

Finding the Fourth Proportional to 14,288.76, 21,431.52 and 3,898.08

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Solution

The fourth proportional to 14,288.76, 21,431.52 and 3,898.08 is: 5,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.76 : 21,431.52 = 3,898.08 : x
  2. Step 2: Convert to fraction form
    14,288.76/21,431.52 = 3,898.08/x
  3. Step 3: Cross multiply
    14,288.76x = 21,431.52 × 3,898.08
  4. Step 4: Simplify right side
    14,288.76x = 83,541,779.48
  5. Step 5: Solve for x
    x = 83,541,779.48/14,288.76
  6. Step 6: Final answer
    x = 5,846.68

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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.