Home / 18,556.32-27,837.28-5,409.60

Finding the Fourth Proportional to 18,556.32, 27,837.28 and 5,409.60

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Solution

The fourth proportional to 18,556.32, 27,837.28 and 5,409.60 is: 8,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.32 : 27,837.28 = 5,409.60 : x
  2. Step 2: Convert to fraction form
    18,556.32/27,837.28 = 5,409.60/x
  3. Step 3: Cross multiply
    18,556.32x = 27,837.28 × 5,409.60
  4. Step 4: Simplify right side
    18,556.32x = 150,588,549.89
  5. Step 5: Solve for x
    x = 150,588,549.89/18,556.32
  6. Step 6: Final answer
    x = 8,115.22

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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.