Home / 7,861.51-11,785.58-3,476.58

Finding the Fourth Proportional to 7,861.51, 11,785.58 and 3,476.58

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Solution

The fourth proportional to 7,861.51, 11,785.58 and 3,476.58 is: 5,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.51 : 11,785.58 = 3,476.58 : x
  2. Step 2: Convert to fraction form
    7,861.51/11,785.58 = 3,476.58/x
  3. Step 3: Cross multiply
    7,861.51x = 11,785.58 × 3,476.58
  4. Step 4: Simplify right side
    7,861.51x = 40,973,511.72
  5. Step 5: Solve for x
    x = 40,973,511.72/7,861.51
  6. Step 6: Final answer
    x = 5,211.91

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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.