Home / 13,992.37-20,988.60-5,672.55

Finding the Fourth Proportional to 13,992.37, 20,988.60 and 5,672.55

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Solution

The fourth proportional to 13,992.37, 20,988.60 and 5,672.55 is: 8,508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.37 : 20,988.60 = 5,672.55 : x
  2. Step 2: Convert to fraction form
    13,992.37/20,988.60 = 5,672.55/x
  3. Step 3: Cross multiply
    13,992.37x = 20,988.60 × 5,672.55
  4. Step 4: Simplify right side
    13,992.37x = 119,058,882.93
  5. Step 5: Solve for x
    x = 119,058,882.93/13,992.37
  6. Step 6: Final answer
    x = 8,508.84

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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.