Home / 18,090.36-24,955.56-11,278.80

Finding the Fourth Proportional to 18,090.36, 24,955.56 and 11,278.80

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Solution

The fourth proportional to 18,090.36, 24,955.56 and 11,278.80 is: 15,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.36 : 24,955.56 = 11,278.80 : x
  2. Step 2: Convert to fraction form
    18,090.36/24,955.56 = 11,278.80/x
  3. Step 3: Cross multiply
    18,090.36x = 24,955.56 × 11,278.80
  4. Step 4: Simplify right side
    18,090.36x = 281,468,770.13
  5. Step 5: Solve for x
    x = 281,468,770.13/18,090.36
  6. Step 6: Final answer
    x = 15,559.05

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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.