Home / 18,326.25-25,288.61-12,950.75

Finding the Fourth Proportional to 18,326.25, 25,288.61 and 12,950.75

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Solution

The fourth proportional to 18,326.25, 25,288.61 and 12,950.75 is: 17,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.25 : 25,288.61 = 12,950.75 : x
  2. Step 2: Convert to fraction form
    18,326.25/25,288.61 = 12,950.75/x
  3. Step 3: Cross multiply
    18,326.25x = 25,288.61 × 12,950.75
  4. Step 4: Simplify right side
    18,326.25x = 327,506,464.43
  5. Step 5: Solve for x
    x = 327,506,464.43/18,326.25
  6. Step 6: Final answer
    x = 17,870.89

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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.