Home / 12,692.16-19,038.24-3,926.88

Finding the Fourth Proportional to 12,692.16, 19,038.24 and 3,926.88

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Solution

The fourth proportional to 12,692.16, 19,038.24 and 3,926.88 is: 5,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.16 : 19,038.24 = 3,926.88 : x
  2. Step 2: Convert to fraction form
    12,692.16/19,038.24 = 3,926.88/x
  3. Step 3: Cross multiply
    12,692.16x = 19,038.24 × 3,926.88
  4. Step 4: Simplify right side
    12,692.16x = 74,760,883.89
  5. Step 5: Solve for x
    x = 74,760,883.89/12,692.16
  6. Step 6: Final answer
    x = 5,890.32

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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.