Home / 7,973.16-11,959.80-2,779.04

Finding the Fourth Proportional to 7,973.16, 11,959.80 and 2,779.04

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Solution

The fourth proportional to 7,973.16, 11,959.80 and 2,779.04 is: 4,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.16 : 11,959.80 = 2,779.04 : x
  2. Step 2: Convert to fraction form
    7,973.16/11,959.80 = 2,779.04/x
  3. Step 3: Cross multiply
    7,973.16x = 11,959.80 × 2,779.04
  4. Step 4: Simplify right side
    7,973.16x = 33,236,762.59
  5. Step 5: Solve for x
    x = 33,236,762.59/7,973.16
  6. Step 6: Final answer
    x = 4,168.58

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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.