Home / 7,412.16-11,108.96-3,508.80

Finding the Fourth Proportional to 7,412.16, 11,108.96 and 3,508.80

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Solution

The fourth proportional to 7,412.16, 11,108.96 and 3,508.80 is: 5,258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.16 : 11,108.96 = 3,508.80 : x
  2. Step 2: Convert to fraction form
    7,412.16/11,108.96 = 3,508.80/x
  3. Step 3: Cross multiply
    7,412.16x = 11,108.96 × 3,508.80
  4. Step 4: Simplify right side
    7,412.16x = 38,979,118.85
  5. Step 5: Solve for x
    x = 38,979,118.85/7,412.16
  6. Step 6: Final answer
    x = 5,258.81

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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.