Home / 8,739.09-13,087.58-5,448.06

Finding the Fourth Proportional to 8,739.09, 13,087.58 and 5,448.06

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Solution

The fourth proportional to 8,739.09, 13,087.58 and 5,448.06 is: 8,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.09 : 13,087.58 = 5,448.06 : x
  2. Step 2: Convert to fraction form
    8,739.09/13,087.58 = 5,448.06/x
  3. Step 3: Cross multiply
    8,739.09x = 13,087.58 × 5,448.06
  4. Step 4: Simplify right side
    8,739.09x = 71,301,893.85
  5. Step 5: Solve for x
    x = 71,301,893.85/8,739.09
  6. Step 6: Final answer
    x = 8,158.96

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1.5x scale

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.