Home / 14,172.20-19,556.34-8,506.88

Finding the Fourth Proportional to 14,172.20, 19,556.34 and 8,506.88

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Solution

The fourth proportional to 14,172.20, 19,556.34 and 8,506.88 is: 11,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.20 : 19,556.34 = 8,506.88 : x
  2. Step 2: Convert to fraction form
    14,172.20/19,556.34 = 8,506.88/x
  3. Step 3: Cross multiply
    14,172.20x = 19,556.34 × 8,506.88
  4. Step 4: Simplify right side
    14,172.20x = 166,363,437.62
  5. Step 5: Solve for x
    x = 166,363,437.62/14,172.20
  6. Step 6: Final answer
    x = 11,738.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.