Home / 12,446.49-18,625.85-7,768.69

Finding the Fourth Proportional to 12,446.49, 18,625.85 and 7,768.69

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Solution

The fourth proportional to 12,446.49, 18,625.85 and 7,768.69 is: 11,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.49 : 18,625.85 = 7,768.69 : x
  2. Step 2: Convert to fraction form
    12,446.49/18,625.85 = 7,768.69/x
  3. Step 3: Cross multiply
    12,446.49x = 18,625.85 × 7,768.69
  4. Step 4: Simplify right side
    12,446.49x = 144,698,454.64
  5. Step 5: Solve for x
    x = 144,698,454.64/12,446.49
  6. Step 6: Final answer
    x = 11,625.64

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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.