Home / 7,890.18-11,835.27-4,961.22

Finding the Fourth Proportional to 7,890.18, 11,835.27 and 4,961.22

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Solution

The fourth proportional to 7,890.18, 11,835.27 and 4,961.22 is: 7,441.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.18 : 11,835.27 = 4,961.22 : x
  2. Step 2: Convert to fraction form
    7,890.18/11,835.27 = 4,961.22/x
  3. Step 3: Cross multiply
    7,890.18x = 11,835.27 × 4,961.22
  4. Step 4: Simplify right side
    7,890.18x = 58,717,378.23
  5. Step 5: Solve for x
    x = 58,717,378.23/7,890.18
  6. Step 6: Final answer
    x = 7,441.83

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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.