Home / 12,146.76-18,222.57-4,356.18

Finding the Fourth Proportional to 12,146.76, 18,222.57 and 4,356.18

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Solution

The fourth proportional to 12,146.76, 18,222.57 and 4,356.18 is: 6,535.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.76 : 18,222.57 = 4,356.18 : x
  2. Step 2: Convert to fraction form
    12,146.76/18,222.57 = 4,356.18/x
  3. Step 3: Cross multiply
    12,146.76x = 18,222.57 × 4,356.18
  4. Step 4: Simplify right side
    12,146.76x = 79,380,794.98
  5. Step 5: Solve for x
    x = 79,380,794.98/12,146.76
  6. Step 6: Final answer
    x = 6,535.14

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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.