Home / 8,465.21-12,705.61-4,308.19

Finding the Fourth Proportional to 8,465.21, 12,705.61 and 4,308.19

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Solution

The fourth proportional to 8,465.21, 12,705.61 and 4,308.19 is: 6,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.21 : 12,705.61 = 4,308.19 : x
  2. Step 2: Convert to fraction form
    8,465.21/12,705.61 = 4,308.19/x
  3. Step 3: Cross multiply
    8,465.21x = 12,705.61 × 4,308.19
  4. Step 4: Simplify right side
    8,465.21x = 54,738,147.49
  5. Step 5: Solve for x
    x = 54,738,147.49/8,465.21
  6. Step 6: Final answer
    x = 6,466.25

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1.5x scale

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.