Home / 12,003.10-16,561.60-6,964.39

Finding the Fourth Proportional to 12,003.10, 16,561.60 and 6,964.39

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Solution

The fourth proportional to 12,003.10, 16,561.60 and 6,964.39 is: 9,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.10 : 16,561.60 = 6,964.39 : x
  2. Step 2: Convert to fraction form
    12,003.10/16,561.60 = 6,964.39/x
  3. Step 3: Cross multiply
    12,003.10x = 16,561.60 × 6,964.39
  4. Step 4: Simplify right side
    12,003.10x = 115,341,441.42
  5. Step 5: Solve for x
    x = 115,341,441.42/12,003.10
  6. Step 6: Final answer
    x = 9,609.30

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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.