Home / 13,928.32-19,220.07-8,262.82

Finding the Fourth Proportional to 13,928.32, 19,220.07 and 8,262.82

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Solution

The fourth proportional to 13,928.32, 19,220.07 and 8,262.82 is: 11,402.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.32 : 19,220.07 = 8,262.82 : x
  2. Step 2: Convert to fraction form
    13,928.32/19,220.07 = 8,262.82/x
  3. Step 3: Cross multiply
    13,928.32x = 19,220.07 × 8,262.82
  4. Step 4: Simplify right side
    13,928.32x = 158,811,978.80
  5. Step 5: Solve for x
    x = 158,811,978.80/13,928.32
  6. Step 6: Final answer
    x = 11,402.09

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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.