Home / 13,284.70-18,326.16-8,251.90

Finding the Fourth Proportional to 13,284.70, 18,326.16 and 8,251.90

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Solution

The fourth proportional to 13,284.70, 18,326.16 and 8,251.90 is: 11,383.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.70 : 18,326.16 = 8,251.90 : x
  2. Step 2: Convert to fraction form
    13,284.70/18,326.16 = 8,251.90/x
  3. Step 3: Cross multiply
    13,284.70x = 18,326.16 × 8,251.90
  4. Step 4: Simplify right side
    13,284.70x = 151,225,639.70
  5. Step 5: Solve for x
    x = 151,225,639.70/13,284.70
  6. Step 6: Final answer
    x = 11,383.44

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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.