Home / 13,405.66-20,094.82-10,911.80

Finding the Fourth Proportional to 13,405.66, 20,094.82 and 10,911.80

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Solution

The fourth proportional to 13,405.66, 20,094.82 and 10,911.80 is: 16,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.66 : 20,094.82 = 10,911.80 : x
  2. Step 2: Convert to fraction form
    13,405.66/20,094.82 = 10,911.80/x
  3. Step 3: Cross multiply
    13,405.66x = 20,094.82 × 10,911.80
  4. Step 4: Simplify right side
    13,405.66x = 219,270,679.83
  5. Step 5: Solve for x
    x = 219,270,679.83/13,405.66
  6. Step 6: Final answer
    x = 16,356.58

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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.