Home / 12,070.53-18,086.06-11,609.21

Finding the Fourth Proportional to 12,070.53, 18,086.06 and 11,609.21

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Solution

The fourth proportional to 12,070.53, 18,086.06 and 11,609.21 is: 17,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.53 : 18,086.06 = 11,609.21 : x
  2. Step 2: Convert to fraction form
    12,070.53/18,086.06 = 11,609.21/x
  3. Step 3: Cross multiply
    12,070.53x = 18,086.06 × 11,609.21
  4. Step 4: Simplify right side
    12,070.53x = 209,964,942.85
  5. Step 5: Solve for x
    x = 209,964,942.85/12,070.53
  6. Step 6: Final answer
    x = 17,394.84

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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.