Home / 18,577.88-27,866.82-5,430.25

Finding the Fourth Proportional to 18,577.88, 27,866.82 and 5,430.25

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Solution

The fourth proportional to 18,577.88, 27,866.82 and 5,430.25 is: 8,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.88 : 27,866.82 = 5,430.25 : x
  2. Step 2: Convert to fraction form
    18,577.88/27,866.82 = 5,430.25/x
  3. Step 3: Cross multiply
    18,577.88x = 27,866.82 × 5,430.25
  4. Step 4: Simplify right side
    18,577.88x = 151,323,886.05
  5. Step 5: Solve for x
    x = 151,323,886.05/18,577.88
  6. Step 6: Final answer
    x = 8,145.38

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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.