Home / 12,404.92-18,562.80-9,109.84

Finding the Fourth Proportional to 12,404.92, 18,562.80 and 9,109.84

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Solution

The fourth proportional to 12,404.92, 18,562.80 and 9,109.84 is: 13,632.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.92 : 18,562.80 = 9,109.84 : x
  2. Step 2: Convert to fraction form
    12,404.92/18,562.80 = 9,109.84/x
  3. Step 3: Cross multiply
    12,404.92x = 18,562.80 × 9,109.84
  4. Step 4: Simplify right side
    12,404.92x = 169,104,137.95
  5. Step 5: Solve for x
    x = 169,104,137.95/12,404.92
  6. Step 6: Final answer
    x = 13,632.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.