Home / 12,836.36-17,714.52-7,170.86

Finding the Fourth Proportional to 12,836.36, 17,714.52 and 7,170.86

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Solution

The fourth proportional to 12,836.36, 17,714.52 and 7,170.86 is: 9,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.36 : 17,714.52 = 7,170.86 : x
  2. Step 2: Convert to fraction form
    12,836.36/17,714.52 = 7,170.86/x
  3. Step 3: Cross multiply
    12,836.36x = 17,714.52 × 7,170.86
  4. Step 4: Simplify right side
    12,836.36x = 127,028,342.89
  5. Step 5: Solve for x
    x = 127,028,342.89/12,836.36
  6. Step 6: Final answer
    x = 9,895.98

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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.