Home / 8,619.35-12,918.08-4,458.58

Finding the Fourth Proportional to 8,619.35, 12,918.08 and 4,458.58

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Solution

The fourth proportional to 8,619.35, 12,918.08 and 4,458.58 is: 6,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.35 : 12,918.08 = 4,458.58 : x
  2. Step 2: Convert to fraction form
    8,619.35/12,918.08 = 4,458.58/x
  3. Step 3: Cross multiply
    8,619.35x = 12,918.08 × 4,458.58
  4. Step 4: Simplify right side
    8,619.35x = 57,596,293.13
  5. Step 5: Solve for x
    x = 57,596,293.13/8,619.35
  6. Step 6: Final answer
    x = 6,682.21

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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.