Home / 9,779.51-13,495.87-5,745.33

Finding the Fourth Proportional to 9,779.51, 13,495.87 and 5,745.33

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Solution

The fourth proportional to 9,779.51, 13,495.87 and 5,745.33 is: 7,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779.51 : 13,495.87 = 5,745.33 : x
  2. Step 2: Convert to fraction form
    9,779.51/13,495.87 = 5,745.33/x
  3. Step 3: Cross multiply
    9,779.51x = 13,495.87 × 5,745.33
  4. Step 4: Simplify right side
    9,779.51x = 77,538,226.79
  5. Step 5: Solve for x
    x = 77,538,226.79/9,779.51
  6. Step 6: Final answer
    x = 7,928.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.