Home / 12,885.32-19,331.67-6,313.43

Finding the Fourth Proportional to 12,885.32, 19,331.67 and 6,313.43

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Solution

The fourth proportional to 12,885.32, 19,331.67 and 6,313.43 is: 9,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.32 : 19,331.67 = 6,313.43 : x
  2. Step 2: Convert to fraction form
    12,885.32/19,331.67 = 6,313.43/x
  3. Step 3: Cross multiply
    12,885.32x = 19,331.67 × 6,313.43
  4. Step 4: Simplify right side
    12,885.32x = 122,049,145.33
  5. Step 5: Solve for x
    x = 122,049,145.33/12,885.32
  6. Step 6: Final answer
    x = 9,471.95

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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.