Home / 18,091.44-24,969.14-12,421.48

Finding the Fourth Proportional to 18,091.44, 24,969.14 and 12,421.48

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Solution

The fourth proportional to 18,091.44, 24,969.14 and 12,421.48 is: 17,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.44 : 24,969.14 = 12,421.48 : x
  2. Step 2: Convert to fraction form
    18,091.44/24,969.14 = 12,421.48/x
  3. Step 3: Cross multiply
    18,091.44x = 24,969.14 × 12,421.48
  4. Step 4: Simplify right side
    18,091.44x = 310,153,673.13
  5. Step 5: Solve for x
    x = 310,153,673.13/18,091.44
  6. Step 6: Final answer
    x = 17,143.67

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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.