Home / 8,101.16-12,162.24-4,208.28

Finding the Fourth Proportional to 8,101.16, 12,162.24 and 4,208.28

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Solution

The fourth proportional to 8,101.16, 12,162.24 and 4,208.28 is: 6,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.16 : 12,162.24 = 4,208.28 : x
  2. Step 2: Convert to fraction form
    8,101.16/12,162.24 = 4,208.28/x
  3. Step 3: Cross multiply
    8,101.16x = 12,162.24 × 4,208.28
  4. Step 4: Simplify right side
    8,101.16x = 51,182,111.35
  5. Step 5: Solve for x
    x = 51,182,111.35/8,101.16
  6. Step 6: Final answer
    x = 6,317.87

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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.