Home / 12,867.64-19,263.90-7,922.44

Finding the Fourth Proportional to 12,867.64, 19,263.90 and 7,922.44

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Solution

The fourth proportional to 12,867.64, 19,263.90 and 7,922.44 is: 11,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.64 : 19,263.90 = 7,922.44 : x
  2. Step 2: Convert to fraction form
    12,867.64/19,263.90 = 7,922.44/x
  3. Step 3: Cross multiply
    12,867.64x = 19,263.90 × 7,922.44
  4. Step 4: Simplify right side
    12,867.64x = 152,617,091.92
  5. Step 5: Solve for x
    x = 152,617,091.92/12,867.64
  6. Step 6: Final answer
    x = 11,860.53

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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.