Home / 18,126.32-27,172.72-12,582.24

Finding the Fourth Proportional to 18,126.32, 27,172.72 and 12,582.24

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Solution

The fourth proportional to 18,126.32, 27,172.72 and 12,582.24 is: 18,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.32 : 27,172.72 = 12,582.24 : x
  2. Step 2: Convert to fraction form
    18,126.32/27,172.72 = 12,582.24/x
  3. Step 3: Cross multiply
    18,126.32x = 27,172.72 × 12,582.24
  4. Step 4: Simplify right side
    18,126.32x = 341,893,684.49
  5. Step 5: Solve for x
    x = 341,893,684.49/18,126.32
  6. Step 6: Final answer
    x = 18,861.73

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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.