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Finding the Fourth Proportional to 18,340.56, 27,510.84 and 7,951.50

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Solution

The fourth proportional to 18,340.56, 27,510.84 and 7,951.50 is: 11,927.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.56 : 27,510.84 = 7,951.50 : x
  2. Step 2: Convert to fraction form
    18,340.56/27,510.84 = 7,951.50/x
  3. Step 3: Cross multiply
    18,340.56x = 27,510.84 × 7,951.50
  4. Step 4: Simplify right side
    18,340.56x = 218,752,444.26
  5. Step 5: Solve for x
    x = 218,752,444.26/18,340.56
  6. Step 6: Final answer
    x = 11,927.25

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1.5x scale

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.