Home / 18,487.98-27,742.89-9,723.57

Finding the Fourth Proportional to 18,487.98, 27,742.89 and 9,723.57

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Solution

The fourth proportional to 18,487.98, 27,742.89 and 9,723.57 is: 14,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.98 : 27,742.89 = 9,723.57 : x
  2. Step 2: Convert to fraction form
    18,487.98/27,742.89 = 9,723.57/x
  3. Step 3: Cross multiply
    18,487.98x = 27,742.89 × 9,723.57
  4. Step 4: Simplify right side
    18,487.98x = 269,759,932.92
  5. Step 5: Solve for x
    x = 269,759,932.92/18,487.98
  6. Step 6: Final answer
    x = 14,591.10

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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.