Home / 12,179.76-18,251.34-9,402.24

Finding the Fourth Proportional to 12,179.76, 18,251.34 and 9,402.24

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Solution

The fourth proportional to 12,179.76, 18,251.34 and 9,402.24 is: 14,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.76 : 18,251.34 = 9,402.24 : x
  2. Step 2: Convert to fraction form
    12,179.76/18,251.34 = 9,402.24/x
  3. Step 3: Cross multiply
    12,179.76x = 18,251.34 × 9,402.24
  4. Step 4: Simplify right side
    12,179.76x = 171,603,479.00
  5. Step 5: Solve for x
    x = 171,603,479.00/12,179.76
  6. Step 6: Final answer
    x = 14,089.23

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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.