Home / 12,640.85-17,441.70-7,334.99

Finding the Fourth Proportional to 12,640.85, 17,441.70 and 7,334.99

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Solution

The fourth proportional to 12,640.85, 17,441.70 and 7,334.99 is: 10,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.85 : 17,441.70 = 7,334.99 : x
  2. Step 2: Convert to fraction form
    12,640.85/17,441.70 = 7,334.99/x
  3. Step 3: Cross multiply
    12,640.85x = 17,441.70 × 7,334.99
  4. Step 4: Simplify right side
    12,640.85x = 127,934,695.08
  5. Step 5: Solve for x
    x = 127,934,695.08/12,640.85
  6. Step 6: Final answer
    x = 10,120.74

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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.