Home / 13,490.46-20,235.60-11,177.10

Finding the Fourth Proportional to 13,490.46, 20,235.60 and 11,177.10

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Solution

The fourth proportional to 13,490.46, 20,235.60 and 11,177.10 is: 16,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.46 : 20,235.60 = 11,177.10 : x
  2. Step 2: Convert to fraction form
    13,490.46/20,235.60 = 11,177.10/x
  3. Step 3: Cross multiply
    13,490.46x = 20,235.60 × 11,177.10
  4. Step 4: Simplify right side
    13,490.46x = 226,175,324.76
  5. Step 5: Solve for x
    x = 226,175,324.76/13,490.46
  6. Step 6: Final answer
    x = 16,765.58

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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.