Home / 18,415.46-25,412.42-10,456.64

Finding the Fourth Proportional to 18,415.46, 25,412.42 and 10,456.64

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Solution

The fourth proportional to 18,415.46, 25,412.42 and 10,456.64 is: 14,429.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.46 : 25,412.42 = 10,456.64 : x
  2. Step 2: Convert to fraction form
    18,415.46/25,412.42 = 10,456.64/x
  3. Step 3: Cross multiply
    18,415.46x = 25,412.42 × 10,456.64
  4. Step 4: Simplify right side
    18,415.46x = 265,728,527.47
  5. Step 5: Solve for x
    x = 265,728,527.47/18,415.46
  6. Step 6: Final answer
    x = 14,429.64

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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.