Home / 15,009.24-20,714.37-8,636.11

Finding the Fourth Proportional to 15,009.24, 20,714.37 and 8,636.11

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Solution

The fourth proportional to 15,009.24, 20,714.37 and 8,636.11 is: 11,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.24 : 20,714.37 = 8,636.11 : x
  2. Step 2: Convert to fraction form
    15,009.24/20,714.37 = 8,636.11/x
  3. Step 3: Cross multiply
    15,009.24x = 20,714.37 × 8,636.11
  4. Step 4: Simplify right side
    15,009.24x = 178,891,577.90
  5. Step 5: Solve for x
    x = 178,891,577.90/15,009.24
  6. Step 6: Final answer
    x = 11,918.76

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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.