Home / 14,918.58-20,587.23-8,204.21

Finding the Fourth Proportional to 14,918.58, 20,587.23 and 8,204.21

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Solution

The fourth proportional to 14,918.58, 20,587.23 and 8,204.21 is: 11,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.58 : 20,587.23 = 8,204.21 : x
  2. Step 2: Convert to fraction form
    14,918.58/20,587.23 = 8,204.21/x
  3. Step 3: Cross multiply
    14,918.58x = 20,587.23 × 8,204.21
  4. Step 4: Simplify right side
    14,918.58x = 168,901,857.20
  5. Step 5: Solve for x
    x = 168,901,857.20/14,918.58
  6. Step 6: Final answer
    x = 11,321.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.