Home / 9,779.29-14,669.80-2,759.36

Finding the Fourth Proportional to 9,779.29, 14,669.80 and 2,759.36

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Solution

The fourth proportional to 9,779.29, 14,669.80 and 2,759.36 is: 4,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779.29 : 14,669.80 = 2,759.36 : x
  2. Step 2: Convert to fraction form
    9,779.29/14,669.80 = 2,759.36/x
  3. Step 3: Cross multiply
    9,779.29x = 14,669.80 × 2,759.36
  4. Step 4: Simplify right side
    9,779.29x = 40,479,179.08
  5. Step 5: Solve for x
    x = 40,479,179.08/9,779.29
  6. Step 6: Final answer
    x = 4,139.28

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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.