Home / 18,518.25-25,555.73-10,135.29

Finding the Fourth Proportional to 18,518.25, 25,555.73 and 10,135.29

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Solution

The fourth proportional to 18,518.25, 25,555.73 and 10,135.29 is: 13,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.25 : 25,555.73 = 10,135.29 : x
  2. Step 2: Convert to fraction form
    18,518.25/25,555.73 = 10,135.29/x
  3. Step 3: Cross multiply
    18,518.25x = 25,555.73 × 10,135.29
  4. Step 4: Simplify right side
    18,518.25x = 259,014,684.04
  5. Step 5: Solve for x
    x = 259,014,684.04/18,518.25
  6. Step 6: Final answer
    x = 13,987.00

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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.