Home / 18,538.71-25,584.08-10,155.21

Finding the Fourth Proportional to 18,538.71, 25,584.08 and 10,155.21

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Solution

The fourth proportional to 18,538.71, 25,584.08 and 10,155.21 is: 14,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.71 : 25,584.08 = 10,155.21 : x
  2. Step 2: Convert to fraction form
    18,538.71/25,584.08 = 10,155.21/x
  3. Step 3: Cross multiply
    18,538.71x = 25,584.08 × 10,155.21
  4. Step 4: Simplify right side
    18,538.71x = 259,811,654.28
  5. Step 5: Solve for x
    x = 259,811,654.28/18,538.71
  6. Step 6: Final answer
    x = 14,014.55

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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.