Home / 18,918.54-26,104.86-10,959.30

Finding the Fourth Proportional to 18,918.54, 26,104.86 and 10,959.30

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Solution

The fourth proportional to 18,918.54, 26,104.86 and 10,959.30 is: 15,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.54 : 26,104.86 = 10,959.30 : x
  2. Step 2: Convert to fraction form
    18,918.54/26,104.86 = 10,959.30/x
  3. Step 3: Cross multiply
    18,918.54x = 26,104.86 × 10,959.30
  4. Step 4: Simplify right side
    18,918.54x = 286,090,992.20
  5. Step 5: Solve for x
    x = 286,090,992.20/18,918.54
  6. Step 6: Final answer
    x = 15,122.26

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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.