Home / 6,634.72-9,991.60-5,779.36

Finding the Fourth Proportional to 6,634.72, 9,991.60 and 5,779.36

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Solution

The fourth proportional to 6,634.72, 9,991.60 and 5,779.36 is: 8,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,634.72 : 9,991.60 = 5,779.36 : x
  2. Step 2: Convert to fraction form
    6,634.72/9,991.60 = 5,779.36/x
  3. Step 3: Cross multiply
    6,634.72x = 9,991.60 × 5,779.36
  4. Step 4: Simplify right side
    6,634.72x = 57,745,053.38
  5. Step 5: Solve for x
    x = 57,745,053.38/6,634.72
  6. Step 6: Final answer
    x = 8,703.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.