Home / 13,955.73-19,258.89-7,987.26

Finding the Fourth Proportional to 13,955.73, 19,258.89 and 7,987.26

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Solution

The fourth proportional to 13,955.73, 19,258.89 and 7,987.26 is: 11,022.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.73 : 19,258.89 = 7,987.26 : x
  2. Step 2: Convert to fraction form
    13,955.73/19,258.89 = 7,987.26/x
  3. Step 3: Cross multiply
    13,955.73x = 19,258.89 × 7,987.26
  4. Step 4: Simplify right side
    13,955.73x = 153,825,761.74
  5. Step 5: Solve for x
    x = 153,825,761.74/13,955.73
  6. Step 6: Final answer
    x = 11,022.41

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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.