Home / 13,049.92-18,012.16-8,015.36

Finding the Fourth Proportional to 13,049.92, 18,012.16 and 8,015.36

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Solution

The fourth proportional to 13,049.92, 18,012.16 and 8,015.36 is: 11,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.92 : 18,012.16 = 8,015.36 : x
  2. Step 2: Convert to fraction form
    13,049.92/18,012.16 = 8,015.36/x
  3. Step 3: Cross multiply
    13,049.92x = 18,012.16 × 8,015.36
  4. Step 4: Simplify right side
    13,049.92x = 144,373,946.78
  5. Step 5: Solve for x
    x = 144,373,946.78/13,049.92
  6. Step 6: Final answer
    x = 11,063.21

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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.