Home / 12,930.32-19,394.85-4,165.04

Finding the Fourth Proportional to 12,930.32, 19,394.85 and 4,165.04

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Solution

The fourth proportional to 12,930.32, 19,394.85 and 4,165.04 is: 6,247.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.32 : 19,394.85 = 4,165.04 : x
  2. Step 2: Convert to fraction form
    12,930.32/19,394.85 = 4,165.04/x
  3. Step 3: Cross multiply
    12,930.32x = 19,394.85 × 4,165.04
  4. Step 4: Simplify right side
    12,930.32x = 80,780,326.04
  5. Step 5: Solve for x
    x = 80,780,326.04/12,930.32
  6. Step 6: Final answer
    x = 6,247.36

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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.