Home / 12,251.70-16,907.52-9,180.12

Finding the Fourth Proportional to 12,251.70, 16,907.52 and 9,180.12

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Solution

The fourth proportional to 12,251.70, 16,907.52 and 9,180.12 is: 12,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.70 : 16,907.52 = 9,180.12 : x
  2. Step 2: Convert to fraction form
    12,251.70/16,907.52 = 9,180.12/x
  3. Step 3: Cross multiply
    12,251.70x = 16,907.52 × 9,180.12
  4. Step 4: Simplify right side
    12,251.70x = 155,213,062.50
  5. Step 5: Solve for x
    x = 155,213,062.50/12,251.70
  6. Step 6: Final answer
    x = 12,668.70

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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.