Home / 13,968.70-19,272.54-9,187.28

Finding the Fourth Proportional to 13,968.70, 19,272.54 and 9,187.28

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Solution

The fourth proportional to 13,968.70, 19,272.54 and 9,187.28 is: 12,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.70 : 19,272.54 = 9,187.28 : x
  2. Step 2: Convert to fraction form
    13,968.70/19,272.54 = 9,187.28/x
  3. Step 3: Cross multiply
    13,968.70x = 19,272.54 × 9,187.28
  4. Step 4: Simplify right side
    13,968.70x = 177,062,221.29
  5. Step 5: Solve for x
    x = 177,062,221.29/13,968.70
  6. Step 6: Final answer
    x = 12,675.64

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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.