Home / 8,682.00-11,981.40-4,905.32

Finding the Fourth Proportional to 8,682.00, 11,981.40 and 4,905.32

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Solution

The fourth proportional to 8,682.00, 11,981.40 and 4,905.32 is: 6,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.00 : 11,981.40 = 4,905.32 : x
  2. Step 2: Convert to fraction form
    8,682.00/11,981.40 = 4,905.32/x
  3. Step 3: Cross multiply
    8,682.00x = 11,981.40 × 4,905.32
  4. Step 4: Simplify right side
    8,682.00x = 58,772,651.43
  5. Step 5: Solve for x
    x = 58,772,651.43/8,682.00
  6. Step 6: Final answer
    x = 6,769.48

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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.