Home / 8,308.40-12,466.65-4,412.75

Finding the Fourth Proportional to 8,308.40, 12,466.65 and 4,412.75

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Solution

The fourth proportional to 8,308.40, 12,466.65 and 4,412.75 is: 6,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.40 : 12,466.65 = 4,412.75 : x
  2. Step 2: Convert to fraction form
    8,308.40/12,466.65 = 4,412.75/x
  3. Step 3: Cross multiply
    8,308.40x = 12,466.65 × 4,412.75
  4. Step 4: Simplify right side
    8,308.40x = 55,012,209.79
  5. Step 5: Solve for x
    x = 55,012,209.79/8,308.40
  6. Step 6: Final answer
    x = 6,621.28

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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.