Home / 13,276.91-18,322.25-7,308.61

Finding the Fourth Proportional to 13,276.91, 18,322.25 and 7,308.61

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Solution

The fourth proportional to 13,276.91, 18,322.25 and 7,308.61 is: 10,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.91 : 18,322.25 = 7,308.61 : x
  2. Step 2: Convert to fraction form
    13,276.91/18,322.25 = 7,308.61/x
  3. Step 3: Cross multiply
    13,276.91x = 18,322.25 × 7,308.61
  4. Step 4: Simplify right side
    13,276.91x = 133,910,241.40
  5. Step 5: Solve for x
    x = 133,910,241.40/13,276.91
  6. Step 6: Final answer
    x = 10,085.95

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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.