Home / 15,767.03-21,757.65-8,692.90

Finding the Fourth Proportional to 15,767.03, 21,757.65 and 8,692.90

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Solution

The fourth proportional to 15,767.03, 21,757.65 and 8,692.90 is: 11,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.03 : 21,757.65 = 8,692.90 : x
  2. Step 2: Convert to fraction form
    15,767.03/21,757.65 = 8,692.90/x
  3. Step 3: Cross multiply
    15,767.03x = 21,757.65 × 8,692.90
  4. Step 4: Simplify right side
    15,767.03x = 189,136,988.69
  5. Step 5: Solve for x
    x = 189,136,988.69/15,767.03
  6. Step 6: Final answer
    x = 11,995.73

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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.