Home / 13,440.48-20,162.88-8,252.16

Finding the Fourth Proportional to 13,440.48, 20,162.88 and 8,252.16

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Solution

The fourth proportional to 13,440.48, 20,162.88 and 8,252.16 is: 12,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.48 : 20,162.88 = 8,252.16 : x
  2. Step 2: Convert to fraction form
    13,440.48/20,162.88 = 8,252.16/x
  3. Step 3: Cross multiply
    13,440.48x = 20,162.88 × 8,252.16
  4. Step 4: Simplify right side
    13,440.48x = 166,387,311.82
  5. Step 5: Solve for x
    x = 166,387,311.82/13,440.48
  6. Step 6: Final answer
    x = 12,379.57

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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.