Home / 8,692.22-13,038.33-2,118.40

Finding the Fourth Proportional to 8,692.22, 13,038.33 and 2,118.40

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Solution

The fourth proportional to 8,692.22, 13,038.33 and 2,118.40 is: 3,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.22 : 13,038.33 = 2,118.40 : x
  2. Step 2: Convert to fraction form
    8,692.22/13,038.33 = 2,118.40/x
  3. Step 3: Cross multiply
    8,692.22x = 13,038.33 × 2,118.40
  4. Step 4: Simplify right side
    8,692.22x = 27,620,398.27
  5. Step 5: Solve for x
    x = 27,620,398.27/8,692.22
  6. Step 6: Final answer
    x = 3,177.60

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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.