Home / 18,661.85-25,758.65-12,293.09

Finding the Fourth Proportional to 18,661.85, 25,758.65 and 12,293.09

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Solution

The fourth proportional to 18,661.85, 25,758.65 and 12,293.09 is: 16,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.85 : 25,758.65 = 12,293.09 : x
  2. Step 2: Convert to fraction form
    18,661.85/25,758.65 = 12,293.09/x
  3. Step 3: Cross multiply
    18,661.85x = 25,758.65 × 12,293.09
  4. Step 4: Simplify right side
    18,661.85x = 316,653,341.26
  5. Step 5: Solve for x
    x = 316,653,341.26/18,661.85
  6. Step 6: Final answer
    x = 16,967.95

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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.