Home / 13,586.14-20,379.12-4,226.16

Finding the Fourth Proportional to 13,586.14, 20,379.12 and 4,226.16

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Solution

The fourth proportional to 13,586.14, 20,379.12 and 4,226.16 is: 6,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.14 : 20,379.12 = 4,226.16 : x
  2. Step 2: Convert to fraction form
    13,586.14/20,379.12 = 4,226.16/x
  3. Step 3: Cross multiply
    13,586.14x = 20,379.12 × 4,226.16
  4. Step 4: Simplify right side
    13,586.14x = 86,125,465.58
  5. Step 5: Solve for x
    x = 86,125,465.58/13,586.14
  6. Step 6: Final answer
    x = 6,339.21

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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.