Home / 16,810.20-25,186.95-13,286.70

Finding the Fourth Proportional to 16,810.20, 25,186.95 and 13,286.70

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Solution

The fourth proportional to 16,810.20, 25,186.95 and 13,286.70 is: 19,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,810.20 : 25,186.95 = 13,286.70 : x
  2. Step 2: Convert to fraction form
    16,810.20/25,186.95 = 13,286.70/x
  3. Step 3: Cross multiply
    16,810.20x = 25,186.95 × 13,286.70
  4. Step 4: Simplify right side
    16,810.20x = 334,651,448.57
  5. Step 5: Solve for x
    x = 334,651,448.57/16,810.20
  6. Step 6: Final answer
    x = 19,907.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.