Home / 12,180.76-18,252.84-9,403.24

Finding the Fourth Proportional to 12,180.76, 18,252.84 and 9,403.24

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Solution

The fourth proportional to 12,180.76, 18,252.84 and 9,403.24 is: 14,090.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.76 : 18,252.84 = 9,403.24 : x
  2. Step 2: Convert to fraction form
    12,180.76/18,252.84 = 9,403.24/x
  3. Step 3: Cross multiply
    12,180.76x = 18,252.84 × 9,403.24
  4. Step 4: Simplify right side
    12,180.76x = 171,635,835.20
  5. Step 5: Solve for x
    x = 171,635,835.20/12,180.76
  6. Step 6: Final answer
    x = 14,090.73

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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.