Home / 12,853.18-19,281.18-4,086.04

Finding the Fourth Proportional to 12,853.18, 19,281.18 and 4,086.04

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Solution

The fourth proportional to 12,853.18, 19,281.18 and 4,086.04 is: 6,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,853.18 : 19,281.18 = 4,086.04 : x
  2. Step 2: Convert to fraction form
    12,853.18/19,281.18 = 4,086.04/x
  3. Step 3: Cross multiply
    12,853.18x = 19,281.18 × 4,086.04
  4. Step 4: Simplify right side
    12,853.18x = 78,783,672.73
  5. Step 5: Solve for x
    x = 78,783,672.73/12,853.18
  6. Step 6: Final answer
    x = 6,129.51

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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.