Home / 8,308.19-12,465.60-3,378.21

Finding the Fourth Proportional to 8,308.19, 12,465.60 and 3,378.21

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Solution

The fourth proportional to 8,308.19, 12,465.60 and 3,378.21 is: 5,068.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.19 : 12,465.60 = 3,378.21 : x
  2. Step 2: Convert to fraction form
    8,308.19/12,465.60 = 3,378.21/x
  3. Step 3: Cross multiply
    8,308.19x = 12,465.60 × 3,378.21
  4. Step 4: Simplify right side
    8,308.19x = 42,111,414.58
  5. Step 5: Solve for x
    x = 42,111,414.58/8,308.19
  6. Step 6: Final answer
    x = 5,068.66

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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.