Home / 18,262.14-25,201.80-9,878.64

Finding the Fourth Proportional to 18,262.14, 25,201.80 and 9,878.64

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Solution

The fourth proportional to 18,262.14, 25,201.80 and 9,878.64 is: 13,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.14 : 25,201.80 = 9,878.64 : x
  2. Step 2: Convert to fraction form
    18,262.14/25,201.80 = 9,878.64/x
  3. Step 3: Cross multiply
    18,262.14x = 25,201.80 × 9,878.64
  4. Step 4: Simplify right side
    18,262.14x = 248,959,509.55
  5. Step 5: Solve for x
    x = 248,959,509.55/18,262.14
  6. Step 6: Final answer
    x = 13,632.55

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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.