Home / 15,785.44-21,777.40-11,072.88

Finding the Fourth Proportional to 15,785.44, 21,777.40 and 11,072.88

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Solution

The fourth proportional to 15,785.44, 21,777.40 and 11,072.88 is: 15,276.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785.44 : 21,777.40 = 11,072.88 : x
  2. Step 2: Convert to fraction form
    15,785.44/21,777.40 = 11,072.88/x
  3. Step 3: Cross multiply
    15,785.44x = 21,777.40 × 11,072.88
  4. Step 4: Simplify right side
    15,785.44x = 241,138,536.91
  5. Step 5: Solve for x
    x = 241,138,536.91/15,785.44
  6. Step 6: Final answer
    x = 15,276.01

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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.