Home / 13,601.10-18,768.96-7,936.17

Finding the Fourth Proportional to 13,601.10, 18,768.96 and 7,936.17

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Solution

The fourth proportional to 13,601.10, 18,768.96 and 7,936.17 is: 10,951.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.10 : 18,768.96 = 7,936.17 : x
  2. Step 2: Convert to fraction form
    13,601.10/18,768.96 = 7,936.17/x
  3. Step 3: Cross multiply
    13,601.10x = 18,768.96 × 7,936.17
  4. Step 4: Simplify right side
    13,601.10x = 148,953,657.28
  5. Step 5: Solve for x
    x = 148,953,657.28/13,601.10
  6. Step 6: Final answer
    x = 10,951.59

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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.