Home / 7,680.15-11,516.45-2,485.35

Finding the Fourth Proportional to 7,680.15, 11,516.45 and 2,485.35

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Solution

The fourth proportional to 7,680.15, 11,516.45 and 2,485.35 is: 3,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.15 : 11,516.45 = 2,485.35 : x
  2. Step 2: Convert to fraction form
    7,680.15/11,516.45 = 2,485.35/x
  3. Step 3: Cross multiply
    7,680.15x = 11,516.45 × 2,485.35
  4. Step 4: Simplify right side
    7,680.15x = 28,622,396.58
  5. Step 5: Solve for x
    x = 28,622,396.58/7,680.15
  6. Step 6: Final answer
    x = 3,726.80

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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.