Home / 8,628.72-11,903.44-5,089.88

Finding the Fourth Proportional to 8,628.72, 11,903.44 and 5,089.88

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Solution

The fourth proportional to 8,628.72, 11,903.44 and 5,089.88 is: 7,021.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.72 : 11,903.44 = 5,089.88 : x
  2. Step 2: Convert to fraction form
    8,628.72/11,903.44 = 5,089.88/x
  3. Step 3: Cross multiply
    8,628.72x = 11,903.44 × 5,089.88
  4. Step 4: Simplify right side
    8,628.72x = 60,587,081.19
  5. Step 5: Solve for x
    x = 60,587,081.19/8,628.72
  6. Step 6: Final answer
    x = 7,021.56

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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.