Home / 11,813.21-17,720.16-3,048.13

Finding the Fourth Proportional to 11,813.21, 17,720.16 and 3,048.13

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Solution

The fourth proportional to 11,813.21, 17,720.16 and 3,048.13 is: 4,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.21 : 17,720.16 = 3,048.13 : x
  2. Step 2: Convert to fraction form
    11,813.21/17,720.16 = 3,048.13/x
  3. Step 3: Cross multiply
    11,813.21x = 17,720.16 × 3,048.13
  4. Step 4: Simplify right side
    11,813.21x = 54,013,262.70
  5. Step 5: Solve for x
    x = 54,013,262.70/11,813.21
  6. Step 6: Final answer
    x = 4,572.28

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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.