Home / 14,216.12-21,370.87-13,188.54

Finding the Fourth Proportional to 14,216.12, 21,370.87 and 13,188.54

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Solution

The fourth proportional to 14,216.12, 21,370.87 and 13,188.54 is: 19,826.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.12 : 21,370.87 = 13,188.54 : x
  2. Step 2: Convert to fraction form
    14,216.12/21,370.87 = 13,188.54/x
  3. Step 3: Cross multiply
    14,216.12x = 21,370.87 × 13,188.54
  4. Step 4: Simplify right side
    14,216.12x = 281,850,573.83
  5. Step 5: Solve for x
    x = 281,850,573.83/14,216.12
  6. Step 6: Final answer
    x = 19,826.13

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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.