Home / 13,286.26-18,335.06-7,317.95

Finding the Fourth Proportional to 13,286.26, 18,335.06 and 7,317.95

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Solution

The fourth proportional to 13,286.26, 18,335.06 and 7,317.95 is: 10,098.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.26 : 18,335.06 = 7,317.95 : x
  2. Step 2: Convert to fraction form
    13,286.26/18,335.06 = 7,317.95/x
  3. Step 3: Cross multiply
    13,286.26x = 18,335.06 × 7,317.95
  4. Step 4: Simplify right side
    13,286.26x = 134,174,951.50
  5. Step 5: Solve for x
    x = 134,174,951.50/13,286.26
  6. Step 6: Final answer
    x = 10,098.77

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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.