Home / 16,485.72-22,719.45-11,761.80

Finding the Fourth Proportional to 16,485.72, 22,719.45 and 11,761.80

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Solution

The fourth proportional to 16,485.72, 22,719.45 and 11,761.80 is: 16,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,485.72 : 22,719.45 = 11,761.80 : x
  2. Step 2: Convert to fraction form
    16,485.72/22,719.45 = 11,761.80/x
  3. Step 3: Cross multiply
    16,485.72x = 22,719.45 × 11,761.80
  4. Step 4: Simplify right side
    16,485.72x = 267,221,627.01
  5. Step 5: Solve for x
    x = 267,221,627.01/16,485.72
  6. Step 6: Final answer
    x = 16,209.28

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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.