Home / 8,739.36-13,109.85-3,545.64

Finding the Fourth Proportional to 8,739.36, 13,109.85 and 3,545.64

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Solution

The fourth proportional to 8,739.36, 13,109.85 and 3,545.64 is: 5,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.36 : 13,109.85 = 3,545.64 : x
  2. Step 2: Convert to fraction form
    8,739.36/13,109.85 = 3,545.64/x
  3. Step 3: Cross multiply
    8,739.36x = 13,109.85 × 3,545.64
  4. Step 4: Simplify right side
    8,739.36x = 46,482,808.55
  5. Step 5: Solve for x
    x = 46,482,808.55/8,739.36
  6. Step 6: Final answer
    x = 5,318.79

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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.