Home / 13,968.89-19,262.61-9,724.79

Finding the Fourth Proportional to 13,968.89, 19,262.61 and 9,724.79

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Solution

The fourth proportional to 13,968.89, 19,262.61 and 9,724.79 is: 13,410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.89 : 19,262.61 = 9,724.79 : x
  2. Step 2: Convert to fraction form
    13,968.89/19,262.61 = 9,724.79/x
  3. Step 3: Cross multiply
    13,968.89x = 19,262.61 × 9,724.79
  4. Step 4: Simplify right side
    13,968.89x = 187,324,885.26
  5. Step 5: Solve for x
    x = 187,324,885.26/13,968.89
  6. Step 6: Final answer
    x = 13,410.15

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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.