Home / 18,116.88-25,004.88-11,751.36

Finding the Fourth Proportional to 18,116.88, 25,004.88 and 11,751.36

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Solution

The fourth proportional to 18,116.88, 25,004.88 and 11,751.36 is: 16,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.88 : 25,004.88 = 11,751.36 : x
  2. Step 2: Convert to fraction form
    18,116.88/25,004.88 = 11,751.36/x
  3. Step 3: Cross multiply
    18,116.88x = 25,004.88 × 11,751.36
  4. Step 4: Simplify right side
    18,116.88x = 293,841,346.64
  5. Step 5: Solve for x
    x = 293,841,346.64/18,116.88
  6. Step 6: Final answer
    x = 16,219.20

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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.