Home / 12,758.45-19,140.74-12,546.62

Finding the Fourth Proportional to 12,758.45, 19,140.74 and 12,546.62

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Solution

The fourth proportional to 12,758.45, 19,140.74 and 12,546.62 is: 18,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.45 : 19,140.74 = 12,546.62 : x
  2. Step 2: Convert to fraction form
    12,758.45/19,140.74 = 12,546.62/x
  3. Step 3: Cross multiply
    12,758.45x = 19,140.74 × 12,546.62
  4. Step 4: Simplify right side
    12,758.45x = 240,151,658.15
  5. Step 5: Solve for x
    x = 240,151,658.15/12,758.45
  6. Step 6: Final answer
    x = 18,822.95

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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.