Home / 12,845.28-17,723.52-7,539.84

Finding the Fourth Proportional to 12,845.28, 17,723.52 and 7,539.84

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Solution

The fourth proportional to 12,845.28, 17,723.52 and 7,539.84 is: 10,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.28 : 17,723.52 = 7,539.84 : x
  2. Step 2: Convert to fraction form
    12,845.28/17,723.52 = 7,539.84/x
  3. Step 3: Cross multiply
    12,845.28x = 17,723.52 × 7,539.84
  4. Step 4: Simplify right side
    12,845.28x = 133,632,505.04
  5. Step 5: Solve for x
    x = 133,632,505.04/12,845.28
  6. Step 6: Final answer
    x = 10,403.24

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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.