Home / 13,234.20-18,262.58-7,931.96

Finding the Fourth Proportional to 13,234.20, 18,262.58 and 7,931.96

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Solution

The fourth proportional to 13,234.20, 18,262.58 and 7,931.96 is: 10,945.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.20 : 18,262.58 = 7,931.96 : x
  2. Step 2: Convert to fraction form
    13,234.20/18,262.58 = 7,931.96/x
  3. Step 3: Cross multiply
    13,234.20x = 18,262.58 × 7,931.96
  4. Step 4: Simplify right side
    13,234.20x = 144,858,054.06
  5. Step 5: Solve for x
    x = 144,858,054.06/13,234.20
  6. Step 6: Final answer
    x = 10,945.74

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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.