Home / 14,538.69-21,820.49-5,779.75

Finding the Fourth Proportional to 14,538.69, 21,820.49 and 5,779.75

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Solution

The fourth proportional to 14,538.69, 21,820.49 and 5,779.75 is: 8,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,538.69 : 21,820.49 = 5,779.75 : x
  2. Step 2: Convert to fraction form
    14,538.69/21,820.49 = 5,779.75/x
  3. Step 3: Cross multiply
    14,538.69x = 21,820.49 × 5,779.75
  4. Step 4: Simplify right side
    14,538.69x = 126,116,977.08
  5. Step 5: Solve for x
    x = 126,116,977.08/14,538.69
  6. Step 6: Final answer
    x = 8,674.58

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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.