Home / 10,814.40-16,222.68-3,888

Finding the Fourth Proportional to 10,814.40, 16,222.68 and 3,888

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Solution

The fourth proportional to 10,814.40, 16,222.68 and 3,888 is: 5,832.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,814.40 : 16,222.68 = 3,888 : x
  2. Step 2: Convert to fraction form
    10,814.40/16,222.68 = 3,888/x
  3. Step 3: Cross multiply
    10,814.40x = 16,222.68 × 3,888
  4. Step 4: Simplify right side
    10,814.40x = 63,073,779.84
  5. Step 5: Solve for x
    x = 63,073,779.84/10,814.40
  6. Step 6: Final answer
    x = 5,832.39

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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.