Home / 12,505.75-18,758.62-5,012.70

Finding the Fourth Proportional to 12,505.75, 18,758.62 and 5,012.70

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Solution

The fourth proportional to 12,505.75, 18,758.62 and 5,012.70 is: 7,519.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.75 : 18,758.62 = 5,012.70 : x
  2. Step 2: Convert to fraction form
    12,505.75/18,758.62 = 5,012.70/x
  3. Step 3: Cross multiply
    12,505.75x = 18,758.62 × 5,012.70
  4. Step 4: Simplify right side
    12,505.75x = 94,031,270.40
  5. Step 5: Solve for x
    x = 94,031,270.40/12,505.75
  6. Step 6: Final answer
    x = 7,519.04

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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.