Home / 13,405.97-18,489.09-10,056.22

Finding the Fourth Proportional to 13,405.97, 18,489.09 and 10,056.22

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Solution

The fourth proportional to 13,405.97, 18,489.09 and 10,056.22 is: 13,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.97 : 18,489.09 = 10,056.22 : x
  2. Step 2: Convert to fraction form
    13,405.97/18,489.09 = 10,056.22/x
  3. Step 3: Cross multiply
    13,405.97x = 18,489.09 × 10,056.22
  4. Step 4: Simplify right side
    13,405.97x = 185,930,356.64
  5. Step 5: Solve for x
    x = 185,930,356.64/13,405.97
  6. Step 6: Final answer
    x = 13,869.22

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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.