Home / 19,692.32-29,512.96-7,999.16

Finding the Fourth Proportional to 19,692.32, 29,512.96 and 7,999.16

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Solution

The fourth proportional to 19,692.32, 29,512.96 and 7,999.16 is: 11,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,692.32 : 29,512.96 = 7,999.16 : x
  2. Step 2: Convert to fraction form
    19,692.32/29,512.96 = 7,999.16/x
  3. Step 3: Cross multiply
    19,692.32x = 29,512.96 × 7,999.16
  4. Step 4: Simplify right side
    19,692.32x = 236,078,721.55
  5. Step 5: Solve for x
    x = 236,078,721.55/19,692.32
  6. Step 6: Final answer
    x = 11,988.37

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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.