Home / 18,780.37-25,918.34-10,714.20

Finding the Fourth Proportional to 18,780.37, 25,918.34 and 10,714.20

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Solution

The fourth proportional to 18,780.37, 25,918.34 and 10,714.20 is: 14,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.37 : 25,918.34 = 10,714.20 : x
  2. Step 2: Convert to fraction form
    18,780.37/25,918.34 = 10,714.20/x
  3. Step 3: Cross multiply
    18,780.37x = 25,918.34 × 10,714.20
  4. Step 4: Simplify right side
    18,780.37x = 277,694,148.84
  5. Step 5: Solve for x
    x = 277,694,148.84/18,780.37
  6. Step 6: Final answer
    x = 14,786.41

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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.