Home / 18,838.34-28,257.78-5,690.83

Finding the Fourth Proportional to 18,838.34, 28,257.78 and 5,690.83

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Solution

The fourth proportional to 18,838.34, 28,257.78 and 5,690.83 is: 8,536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.34 : 28,257.78 = 5,690.83 : x
  2. Step 2: Convert to fraction form
    18,838.34/28,257.78 = 5,690.83/x
  3. Step 3: Cross multiply
    18,838.34x = 28,257.78 × 5,690.83
  4. Step 4: Simplify right side
    18,838.34x = 160,810,080.87
  5. Step 5: Solve for x
    x = 160,810,080.87/18,838.34
  6. Step 6: Final answer
    x = 8,536.32

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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.