Home / 18,090.15-27,139.56-7,554.33

Finding the Fourth Proportional to 18,090.15, 27,139.56 and 7,554.33

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Solution

The fourth proportional to 18,090.15, 27,139.56 and 7,554.33 is: 11,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.15 : 27,139.56 = 7,554.33 : x
  2. Step 2: Convert to fraction form
    18,090.15/27,139.56 = 7,554.33/x
  3. Step 3: Cross multiply
    18,090.15x = 27,139.56 × 7,554.33
  4. Step 4: Simplify right side
    18,090.15x = 205,021,192.29
  5. Step 5: Solve for x
    x = 205,021,192.29/18,090.15
  6. Step 6: Final answer
    x = 11,333.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.