Home / 18,956.08-28,438.28-5,809.44

Finding the Fourth Proportional to 18,956.08, 28,438.28 and 5,809.44

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Solution

The fourth proportional to 18,956.08, 28,438.28 and 5,809.44 is: 8,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.08 : 28,438.28 = 5,809.44 : x
  2. Step 2: Convert to fraction form
    18,956.08/28,438.28 = 5,809.44/x
  3. Step 3: Cross multiply
    18,956.08x = 28,438.28 × 5,809.44
  4. Step 4: Simplify right side
    18,956.08x = 165,210,481.36
  5. Step 5: Solve for x
    x = 165,210,481.36/18,956.08
  6. Step 6: Final answer
    x = 8,715.43

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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.