Home / 12,664.32-18,981.36-4,868.88

Finding the Fourth Proportional to 12,664.32, 18,981.36 and 4,868.88

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Solution

The fourth proportional to 12,664.32, 18,981.36 and 4,868.88 is: 7,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.32 : 18,981.36 = 4,868.88 : x
  2. Step 2: Convert to fraction form
    12,664.32/18,981.36 = 4,868.88/x
  3. Step 3: Cross multiply
    12,664.32x = 18,981.36 × 4,868.88
  4. Step 4: Simplify right side
    12,664.32x = 92,417,964.08
  5. Step 5: Solve for x
    x = 92,417,964.08/12,664.32
  6. Step 6: Final answer
    x = 7,297.51

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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.