Home / 13,319.54-18,382.17-8,013.50

Finding the Fourth Proportional to 13,319.54, 18,382.17 and 8,013.50

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Solution

The fourth proportional to 13,319.54, 18,382.17 and 8,013.50 is: 11,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.54 : 18,382.17 = 8,013.50 : x
  2. Step 2: Convert to fraction form
    13,319.54/18,382.17 = 8,013.50/x
  3. Step 3: Cross multiply
    13,319.54x = 18,382.17 × 8,013.50
  4. Step 4: Simplify right side
    13,319.54x = 147,305,519.30
  5. Step 5: Solve for x
    x = 147,305,519.30/13,319.54
  6. Step 6: Final answer
    x = 11,059.35

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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.