Home / 8,110.15-12,162.72-3,430.08

Finding the Fourth Proportional to 8,110.15, 12,162.72 and 3,430.08

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Solution

The fourth proportional to 8,110.15, 12,162.72 and 3,430.08 is: 5,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.15 : 12,162.72 = 3,430.08 : x
  2. Step 2: Convert to fraction form
    8,110.15/12,162.72 = 3,430.08/x
  3. Step 3: Cross multiply
    8,110.15x = 12,162.72 × 3,430.08
  4. Step 4: Simplify right side
    8,110.15x = 41,719,135.36
  5. Step 5: Solve for x
    x = 41,719,135.36/8,110.15
  6. Step 6: Final answer
    x = 5,144.06

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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.