Home / 18,516.21-27,774.38-4,476.21

Finding the Fourth Proportional to 18,516.21, 27,774.38 and 4,476.21

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Solution

The fourth proportional to 18,516.21, 27,774.38 and 4,476.21 is: 6,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.21 : 27,774.38 = 4,476.21 : x
  2. Step 2: Convert to fraction form
    18,516.21/27,774.38 = 4,476.21/x
  3. Step 3: Cross multiply
    18,516.21x = 27,774.38 × 4,476.21
  4. Step 4: Simplify right side
    18,516.21x = 124,323,935.12
  5. Step 5: Solve for x
    x = 124,323,935.12/18,516.21
  6. Step 6: Final answer
    x = 6,714.33

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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.