Home / 8,181.12-11,290.24-4,822.40

Finding the Fourth Proportional to 8,181.12, 11,290.24 and 4,822.40

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Solution

The fourth proportional to 8,181.12, 11,290.24 and 4,822.40 is: 6,655.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.12 : 11,290.24 = 4,822.40 : x
  2. Step 2: Convert to fraction form
    8,181.12/11,290.24 = 4,822.40/x
  3. Step 3: Cross multiply
    8,181.12x = 11,290.24 × 4,822.40
  4. Step 4: Simplify right side
    8,181.12x = 54,446,053.38
  5. Step 5: Solve for x
    x = 54,446,053.38/8,181.12
  6. Step 6: Final answer
    x = 6,655.09

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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.