Home / 18,962.37-28,434.18-5,811.57

Finding the Fourth Proportional to 18,962.37, 28,434.18 and 5,811.57

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Solution

The fourth proportional to 18,962.37, 28,434.18 and 5,811.57 is: 8,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.37 : 28,434.18 = 5,811.57 : x
  2. Step 2: Convert to fraction form
    18,962.37/28,434.18 = 5,811.57/x
  3. Step 3: Cross multiply
    18,962.37x = 28,434.18 × 5,811.57
  4. Step 4: Simplify right side
    18,962.37x = 165,247,227.46
  5. Step 5: Solve for x
    x = 165,247,227.46/18,962.37
  6. Step 6: Final answer
    x = 8,714.48

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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.