Home / 12,692.89-19,017.67-8,988.96

Finding the Fourth Proportional to 12,692.89, 19,017.67 and 8,988.96

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Solution

The fourth proportional to 12,692.89, 19,017.67 and 8,988.96 is: 13,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.89 : 19,017.67 = 8,988.96 : x
  2. Step 2: Convert to fraction form
    12,692.89/19,017.67 = 8,988.96/x
  3. Step 3: Cross multiply
    12,692.89x = 19,017.67 × 8,988.96
  4. Step 4: Simplify right side
    12,692.89x = 170,949,074.92
  5. Step 5: Solve for x
    x = 170,949,074.92/12,692.89
  6. Step 6: Final answer
    x = 13,468.10

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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.