Home / 12,918.14-17,832.45-8,732.06

Finding the Fourth Proportional to 12,918.14, 17,832.45 and 8,732.06

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Solution

The fourth proportional to 12,918.14, 17,832.45 and 8,732.06 is: 12,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.14 : 17,832.45 = 8,732.06 : x
  2. Step 2: Convert to fraction form
    12,918.14/17,832.45 = 8,732.06/x
  3. Step 3: Cross multiply
    12,918.14x = 17,832.45 × 8,732.06
  4. Step 4: Simplify right side
    12,918.14x = 155,714,023.35
  5. Step 5: Solve for x
    x = 155,714,023.35/12,918.14
  6. Step 6: Final answer
    x = 12,053.90

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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.