Home / 8,178.41-11,290.01-4,820.09

Finding the Fourth Proportional to 8,178.41, 11,290.01 and 4,820.09

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Solution

The fourth proportional to 8,178.41, 11,290.01 and 4,820.09 is: 6,653.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.41 : 11,290.01 = 4,820.09 : x
  2. Step 2: Convert to fraction form
    8,178.41/11,290.01 = 4,820.09/x
  3. Step 3: Cross multiply
    8,178.41x = 11,290.01 × 4,820.09
  4. Step 4: Simplify right side
    8,178.41x = 54,418,840.20
  5. Step 5: Solve for x
    x = 54,418,840.20/8,178.41
  6. Step 6: Final answer
    x = 6,653.96

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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.