Home / 7,890.36-11,827.62-2,692.68

Finding the Fourth Proportional to 7,890.36, 11,827.62 and 2,692.68

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Solution

The fourth proportional to 7,890.36, 11,827.62 and 2,692.68 is: 4,036.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.36 : 11,827.62 = 2,692.68 : x
  2. Step 2: Convert to fraction form
    7,890.36/11,827.62 = 2,692.68/x
  3. Step 3: Cross multiply
    7,890.36x = 11,827.62 × 2,692.68
  4. Step 4: Simplify right side
    7,890.36x = 31,847,995.82
  5. Step 5: Solve for x
    x = 31,847,995.82/7,890.36
  6. Step 6: Final answer
    x = 4,036.32

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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.