Home / 12,631.85-17,431.20-6,966.66

Finding the Fourth Proportional to 12,631.85, 17,431.20 and 6,966.66

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Solution

The fourth proportional to 12,631.85, 17,431.20 and 6,966.66 is: 9,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.85 : 17,431.20 = 6,966.66 : x
  2. Step 2: Convert to fraction form
    12,631.85/17,431.20 = 6,966.66/x
  3. Step 3: Cross multiply
    12,631.85x = 17,431.20 × 6,966.66
  4. Step 4: Simplify right side
    12,631.85x = 121,437,243.79
  5. Step 5: Solve for x
    x = 121,437,243.79/12,631.85
  6. Step 6: Final answer
    x = 9,613.58

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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.