Home / 8,464.22-11,679.12-4,878.35

Finding the Fourth Proportional to 8,464.22, 11,679.12 and 4,878.35

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Solution

The fourth proportional to 8,464.22, 11,679.12 and 4,878.35 is: 6,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464.22 : 11,679.12 = 4,878.35 : x
  2. Step 2: Convert to fraction form
    8,464.22/11,679.12 = 4,878.35/x
  3. Step 3: Cross multiply
    8,464.22x = 11,679.12 × 4,878.35
  4. Step 4: Simplify right side
    8,464.22x = 56,974,776.66
  5. Step 5: Solve for x
    x = 56,974,776.66/8,464.22
  6. Step 6: Final answer
    x = 6,731.25

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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.