Home / 14,123.80-21,185.70-9,166.60

Finding the Fourth Proportional to 14,123.80, 21,185.70 and 9,166.60

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Solution

The fourth proportional to 14,123.80, 21,185.70 and 9,166.60 is: 13,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.80 : 21,185.70 = 9,166.60 : x
  2. Step 2: Convert to fraction form
    14,123.80/21,185.70 = 9,166.60/x
  3. Step 3: Cross multiply
    14,123.80x = 21,185.70 × 9,166.60
  4. Step 4: Simplify right side
    14,123.80x = 194,200,837.62
  5. Step 5: Solve for x
    x = 194,200,837.62/14,123.80
  6. Step 6: Final answer
    x = 13,749.90

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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.