Home / 13,212.24-19,815.84-6,636.60

Finding the Fourth Proportional to 13,212.24, 19,815.84 and 6,636.60

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Solution

The fourth proportional to 13,212.24, 19,815.84 and 6,636.60 is: 9,953.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.24 : 19,815.84 = 6,636.60 : x
  2. Step 2: Convert to fraction form
    13,212.24/19,815.84 = 6,636.60/x
  3. Step 3: Cross multiply
    13,212.24x = 19,815.84 × 6,636.60
  4. Step 4: Simplify right side
    13,212.24x = 131,509,803.74
  5. Step 5: Solve for x
    x = 131,509,803.74/13,212.24
  6. Step 6: Final answer
    x = 9,953.63

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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.