Home / 18,561.54-27,848.69-5,415.85

Finding the Fourth Proportional to 18,561.54, 27,848.69 and 5,415.85

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Solution

The fourth proportional to 18,561.54, 27,848.69 and 5,415.85 is: 8,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.54 : 27,848.69 = 5,415.85 : x
  2. Step 2: Convert to fraction form
    18,561.54/27,848.69 = 5,415.85/x
  3. Step 3: Cross multiply
    18,561.54x = 27,848.69 × 5,415.85
  4. Step 4: Simplify right side
    18,561.54x = 150,824,327.74
  5. Step 5: Solve for x
    x = 150,824,327.74/18,561.54
  6. Step 6: Final answer
    x = 8,125.64

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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.