Home / 13,905.45-19,187.67-7,936.76

Finding the Fourth Proportional to 13,905.45, 19,187.67 and 7,936.76

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Solution

The fourth proportional to 13,905.45, 19,187.67 and 7,936.76 is: 10,951.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.45 : 19,187.67 = 7,936.76 : x
  2. Step 2: Convert to fraction form
    13,905.45/19,187.67 = 7,936.76/x
  3. Step 3: Cross multiply
    13,905.45x = 19,187.67 × 7,936.76
  4. Step 4: Simplify right side
    13,905.45x = 152,287,937.53
  5. Step 5: Solve for x
    x = 152,287,937.53/13,905.45
  6. Step 6: Final answer
    x = 10,951.68

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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.