Home / 12,855.08-19,281.80-4,096.28

Finding the Fourth Proportional to 12,855.08, 19,281.80 and 4,096.28

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Solution

The fourth proportional to 12,855.08, 19,281.80 and 4,096.28 is: 6,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.08 : 19,281.80 = 4,096.28 : x
  2. Step 2: Convert to fraction form
    12,855.08/19,281.80 = 4,096.28/x
  3. Step 3: Cross multiply
    12,855.08x = 19,281.80 × 4,096.28
  4. Step 4: Simplify right side
    12,855.08x = 78,983,565.54
  5. Step 5: Solve for x
    x = 78,983,565.54/12,855.08
  6. Step 6: Final answer
    x = 6,144.15

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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.