Home / 18,857.70-28,284.57-9,493.92

Finding the Fourth Proportional to 18,857.70, 28,284.57 and 9,493.92

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Solution

The fourth proportional to 18,857.70, 28,284.57 and 9,493.92 is: 14,239.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.70 : 28,284.57 = 9,493.92 : x
  2. Step 2: Convert to fraction form
    18,857.70/28,284.57 = 9,493.92/x
  3. Step 3: Cross multiply
    18,857.70x = 28,284.57 × 9,493.92
  4. Step 4: Simplify right side
    18,857.70x = 268,531,444.81
  5. Step 5: Solve for x
    x = 268,531,444.81/18,857.70
  6. Step 6: Final answer
    x = 14,239.88

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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.