Home / 12,319.82-17,001.88-6,731.18

Finding the Fourth Proportional to 12,319.82, 17,001.88 and 6,731.18

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Solution

The fourth proportional to 12,319.82, 17,001.88 and 6,731.18 is: 9,289.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.82 : 17,001.88 = 6,731.18 : x
  2. Step 2: Convert to fraction form
    12,319.82/17,001.88 = 6,731.18/x
  3. Step 3: Cross multiply
    12,319.82x = 17,001.88 × 6,731.18
  4. Step 4: Simplify right side
    12,319.82x = 114,442,714.62
  5. Step 5: Solve for x
    x = 114,442,714.62/12,319.82
  6. Step 6: Final answer
    x = 9,289.32

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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.