Home / 11,160.30-16,728.77-3,762.20

Finding the Fourth Proportional to 11,160.30, 16,728.77 and 3,762.20

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Solution

The fourth proportional to 11,160.30, 16,728.77 and 3,762.20 is: 5,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.30 : 16,728.77 = 3,762.20 : x
  2. Step 2: Convert to fraction form
    11,160.30/16,728.77 = 3,762.20/x
  3. Step 3: Cross multiply
    11,160.30x = 16,728.77 × 3,762.20
  4. Step 4: Simplify right side
    11,160.30x = 62,936,978.49
  5. Step 5: Solve for x
    x = 62,936,978.49/11,160.30
  6. Step 6: Final answer
    x = 5,639.36

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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.