Home / 12,646.49-18,969.72-4,326.59

Finding the Fourth Proportional to 12,646.49, 18,969.72 and 4,326.59

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Solution

The fourth proportional to 12,646.49, 18,969.72 and 4,326.59 is: 6,489.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.49 : 18,969.72 = 4,326.59 : x
  2. Step 2: Convert to fraction form
    12,646.49/18,969.72 = 4,326.59/x
  3. Step 3: Cross multiply
    12,646.49x = 18,969.72 × 4,326.59
  4. Step 4: Simplify right side
    12,646.49x = 82,074,200.85
  5. Step 5: Solve for x
    x = 82,074,200.85/12,646.49
  6. Step 6: Final answer
    x = 6,489.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.