Home / 13,187.58-19,789.44-11,957.16

Finding the Fourth Proportional to 13,187.58, 19,789.44 and 11,957.16

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Solution

The fourth proportional to 13,187.58, 19,789.44 and 11,957.16 is: 17,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.58 : 19,789.44 = 11,957.16 : x
  2. Step 2: Convert to fraction form
    13,187.58/19,789.44 = 11,957.16/x
  3. Step 3: Cross multiply
    13,187.58x = 19,789.44 × 11,957.16
  4. Step 4: Simplify right side
    13,187.58x = 236,625,500.39
  5. Step 5: Solve for x
    x = 236,625,500.39/13,187.58
  6. Step 6: Final answer
    x = 17,943.06

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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.