Home / 13,820.12-19,056.69-9,336.09

Finding the Fourth Proportional to 13,820.12, 19,056.69 and 9,336.09

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Solution

The fourth proportional to 13,820.12, 19,056.69 and 9,336.09 is: 12,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.12 : 19,056.69 = 9,336.09 : x
  2. Step 2: Convert to fraction form
    13,820.12/19,056.69 = 9,336.09/x
  3. Step 3: Cross multiply
    13,820.12x = 19,056.69 × 9,336.09
  4. Step 4: Simplify right side
    13,820.12x = 177,914,909.87
  5. Step 5: Solve for x
    x = 177,914,909.87/13,820.12
  6. Step 6: Final answer
    x = 12,873.62

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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.