Home / 13,424.30-18,527.23-8,119.10

Finding the Fourth Proportional to 13,424.30, 18,527.23 and 8,119.10

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Solution

The fourth proportional to 13,424.30, 18,527.23 and 8,119.10 is: 11,205.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.30 : 18,527.23 = 8,119.10 : x
  2. Step 2: Convert to fraction form
    13,424.30/18,527.23 = 8,119.10/x
  3. Step 3: Cross multiply
    13,424.30x = 18,527.23 × 8,119.10
  4. Step 4: Simplify right side
    13,424.30x = 150,424,489.56
  5. Step 5: Solve for x
    x = 150,424,489.56/13,424.30
  6. Step 6: Final answer
    x = 11,205.39

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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.