Home / 18,120.80-25,003.13-10,568.36

Finding the Fourth Proportional to 18,120.80, 25,003.13 and 10,568.36

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Solution

The fourth proportional to 18,120.80, 25,003.13 and 10,568.36 is: 14,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.80 : 25,003.13 = 10,568.36 : x
  2. Step 2: Convert to fraction form
    18,120.80/25,003.13 = 10,568.36/x
  3. Step 3: Cross multiply
    18,120.80x = 25,003.13 × 10,568.36
  4. Step 4: Simplify right side
    18,120.80x = 264,241,901.11
  5. Step 5: Solve for x
    x = 264,241,901.11/18,120.80
  6. Step 6: Final answer
    x = 14,582.25

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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.