Home / 14,918.51-20,587.68-8,204.18

Finding the Fourth Proportional to 14,918.51, 20,587.68 and 8,204.18

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Solution

The fourth proportional to 14,918.51, 20,587.68 and 8,204.18 is: 11,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.51 : 20,587.68 = 8,204.18 : x
  2. Step 2: Convert to fraction form
    14,918.51/20,587.68 = 8,204.18/x
  3. Step 3: Cross multiply
    14,918.51x = 20,587.68 × 8,204.18
  4. Step 4: Simplify right side
    14,918.51x = 168,904,929.56
  5. Step 5: Solve for x
    x = 168,904,929.56/14,918.51
  6. Step 6: Final answer
    x = 11,321.84

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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.