Home / 12,430.32-18,651.82-6,882.60

Finding the Fourth Proportional to 12,430.32, 18,651.82 and 6,882.60

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Solution

The fourth proportional to 12,430.32, 18,651.82 and 6,882.60 is: 10,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.32 : 18,651.82 = 6,882.60 : x
  2. Step 2: Convert to fraction form
    12,430.32/18,651.82 = 6,882.60/x
  3. Step 3: Cross multiply
    12,430.32x = 18,651.82 × 6,882.60
  4. Step 4: Simplify right side
    12,430.32x = 128,373,016.33
  5. Step 5: Solve for x
    x = 128,373,016.33/12,430.32
  6. Step 6: Final answer
    x = 10,327.41

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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.