Home / 12,774.48-17,629.29-7,735.84

Finding the Fourth Proportional to 12,774.48, 17,629.29 and 7,735.84

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Solution

The fourth proportional to 12,774.48, 17,629.29 and 7,735.84 is: 10,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,774.48 : 17,629.29 = 7,735.84 : x
  2. Step 2: Convert to fraction form
    12,774.48/17,629.29 = 7,735.84/x
  3. Step 3: Cross multiply
    12,774.48x = 17,629.29 × 7,735.84
  4. Step 4: Simplify right side
    12,774.48x = 136,377,366.75
  5. Step 5: Solve for x
    x = 136,377,366.75/12,774.48
  6. Step 6: Final answer
    x = 10,675.77

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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.