Home / 15,692.20-21,655.15-8,522.05

Finding the Fourth Proportional to 15,692.20, 21,655.15 and 8,522.05

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Solution

The fourth proportional to 15,692.20, 21,655.15 and 8,522.05 is: 11,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692.20 : 21,655.15 = 8,522.05 : x
  2. Step 2: Convert to fraction form
    15,692.20/21,655.15 = 8,522.05/x
  3. Step 3: Cross multiply
    15,692.20x = 21,655.15 × 8,522.05
  4. Step 4: Simplify right side
    15,692.20x = 184,546,195.61
  5. Step 5: Solve for x
    x = 184,546,195.61/15,692.20
  6. Step 6: Final answer
    x = 11,760.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.