Home / 14,651.62-20,219.60-8,682.32

Finding the Fourth Proportional to 14,651.62, 20,219.60 and 8,682.32

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Solution

The fourth proportional to 14,651.62, 20,219.60 and 8,682.32 is: 11,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.62 : 20,219.60 = 8,682.32 : x
  2. Step 2: Convert to fraction form
    14,651.62/20,219.60 = 8,682.32/x
  3. Step 3: Cross multiply
    14,651.62x = 20,219.60 × 8,682.32
  4. Step 4: Simplify right side
    14,651.62x = 175,552,994.06
  5. Step 5: Solve for x
    x = 175,552,994.06/14,651.62
  6. Step 6: Final answer
    x = 11,981.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.