Home / 7,758.07-11,636.99-1,914.73

Finding the Fourth Proportional to 7,758.07, 11,636.99 and 1,914.73

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Solution

The fourth proportional to 7,758.07, 11,636.99 and 1,914.73 is: 2,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.07 : 11,636.99 = 1,914.73 : x
  2. Step 2: Convert to fraction form
    7,758.07/11,636.99 = 1,914.73/x
  3. Step 3: Cross multiply
    7,758.07x = 11,636.99 × 1,914.73
  4. Step 4: Simplify right side
    7,758.07x = 22,281,693.86
  5. Step 5: Solve for x
    x = 22,281,693.86/7,758.07
  6. Step 6: Final answer
    x = 2,872.07

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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.