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Finding the Fourth Proportional to 18,355.58, 27,526.39 and 7,818.98

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Solution

The fourth proportional to 18,355.58, 27,526.39 and 7,818.98 is: 11,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.58 : 27,526.39 = 7,818.98 : x
  2. Step 2: Convert to fraction form
    18,355.58/27,526.39 = 7,818.98/x
  3. Step 3: Cross multiply
    18,355.58x = 27,526.39 × 7,818.98
  4. Step 4: Simplify right side
    18,355.58x = 215,228,292.88
  5. Step 5: Solve for x
    x = 215,228,292.88/18,355.58
  6. Step 6: Final answer
    x = 11,725.50

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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.