Home / 18,415.14-25,412.86-10,031.64

Finding the Fourth Proportional to 18,415.14, 25,412.86 and 10,031.64

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Solution

The fourth proportional to 18,415.14, 25,412.86 and 10,031.64 is: 13,843.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.14 : 25,412.86 = 10,031.64 : x
  2. Step 2: Convert to fraction form
    18,415.14/25,412.86 = 10,031.64/x
  3. Step 3: Cross multiply
    18,415.14x = 25,412.86 × 10,031.64
  4. Step 4: Simplify right side
    18,415.14x = 254,932,662.89
  5. Step 5: Solve for x
    x = 254,932,662.89/18,415.14
  6. Step 6: Final answer
    x = 13,843.65

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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.