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Finding the Fourth Proportional to 12,692.08, 17,514.88 and 7,027.20

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Solution

The fourth proportional to 12,692.08, 17,514.88 and 7,027.20 is: 9,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.08 : 17,514.88 = 7,027.20 : x
  2. Step 2: Convert to fraction form
    12,692.08/17,514.88 = 7,027.20/x
  3. Step 3: Cross multiply
    12,692.08x = 17,514.88 × 7,027.20
  4. Step 4: Simplify right side
    12,692.08x = 123,080,564.74
  5. Step 5: Solve for x
    x = 123,080,564.74/12,692.08
  6. Step 6: Final answer
    x = 9,697.43

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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.