Home / 11,418.80-17,130.64-3,628.16

Finding the Fourth Proportional to 11,418.80, 17,130.64 and 3,628.16

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Solution

The fourth proportional to 11,418.80, 17,130.64 and 3,628.16 is: 5,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.80 : 17,130.64 = 3,628.16 : x
  2. Step 2: Convert to fraction form
    11,418.80/17,130.64 = 3,628.16/x
  3. Step 3: Cross multiply
    11,418.80x = 17,130.64 × 3,628.16
  4. Step 4: Simplify right side
    11,418.80x = 62,152,702.82
  5. Step 5: Solve for x
    x = 62,152,702.82/11,418.80
  6. Step 6: Final answer
    x = 5,443.02

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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.