Home / 13,286.92-18,337.06-7,319.82

Finding the Fourth Proportional to 13,286.92, 18,337.06 and 7,319.82

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Solution

The fourth proportional to 13,286.92, 18,337.06 and 7,319.82 is: 10,101.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.92 : 18,337.06 = 7,319.82 : x
  2. Step 2: Convert to fraction form
    13,286.92/18,337.06 = 7,319.82/x
  3. Step 3: Cross multiply
    13,286.92x = 18,337.06 × 7,319.82
  4. Step 4: Simplify right side
    13,286.92x = 134,223,978.53
  5. Step 5: Solve for x
    x = 134,223,978.53/13,286.92
  6. Step 6: Final answer
    x = 10,101.96

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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.