Home / 5,412.07-8,118.75-5,116.83

Finding the Fourth Proportional to 5,412.07, 8,118.75 and 5,116.83

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Solution

The fourth proportional to 5,412.07, 8,118.75 and 5,116.83 is: 7,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.07 : 8,118.75 = 5,116.83 : x
  2. Step 2: Convert to fraction form
    5,412.07/8,118.75 = 5,116.83/x
  3. Step 3: Cross multiply
    5,412.07x = 8,118.75 × 5,116.83
  4. Step 4: Simplify right side
    5,412.07x = 41,542,263.56
  5. Step 5: Solve for x
    x = 41,542,263.56/5,412.07
  6. Step 6: Final answer
    x = 7,675.85

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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.