Home / 13,262.11-18,282.44-9,270.85

Finding the Fourth Proportional to 13,262.11, 18,282.44 and 9,270.85

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Solution

The fourth proportional to 13,262.11, 18,282.44 and 9,270.85 is: 12,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.11 : 18,282.44 = 9,270.85 : x
  2. Step 2: Convert to fraction form
    13,262.11/18,282.44 = 9,270.85/x
  3. Step 3: Cross multiply
    13,262.11x = 18,282.44 × 9,270.85
  4. Step 4: Simplify right side
    13,262.11x = 169,493,667.46
  5. Step 5: Solve for x
    x = 169,493,667.46/13,262.11
  6. Step 6: Final answer
    x = 12,780.30

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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.