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Finding the Fourth Proportional to 9,679.80, 14,518.84 and 3,104.20

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Solution

The fourth proportional to 9,679.80, 14,518.84 and 3,104.20 is: 4,656.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.80 : 14,518.84 = 3,104.20 : x
  2. Step 2: Convert to fraction form
    9,679.80/14,518.84 = 3,104.20/x
  3. Step 3: Cross multiply
    9,679.80x = 14,518.84 × 3,104.20
  4. Step 4: Simplify right side
    9,679.80x = 45,069,383.13
  5. Step 5: Solve for x
    x = 45,069,383.13/9,679.80
  6. Step 6: Final answer
    x = 4,656.02

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1.5x scale

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.