Home / 12,935.84-19,403.75-5,144.58

Finding the Fourth Proportional to 12,935.84, 19,403.75 and 5,144.58

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Solution

The fourth proportional to 12,935.84, 19,403.75 and 5,144.58 is: 7,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.84 : 19,403.75 = 5,144.58 : x
  2. Step 2: Convert to fraction form
    12,935.84/19,403.75 = 5,144.58/x
  3. Step 3: Cross multiply
    12,935.84x = 19,403.75 × 5,144.58
  4. Step 4: Simplify right side
    12,935.84x = 99,824,157.04
  5. Step 5: Solve for x
    x = 99,824,157.04/12,935.84
  6. Step 6: Final answer
    x = 7,716.87

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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.