Home / 9,315.14-13,973.95-3,391.25

Finding the Fourth Proportional to 9,315.14, 13,973.95 and 3,391.25

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Solution

The fourth proportional to 9,315.14, 13,973.95 and 3,391.25 is: 5,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.14 : 13,973.95 = 3,391.25 : x
  2. Step 2: Convert to fraction form
    9,315.14/13,973.95 = 3,391.25/x
  3. Step 3: Cross multiply
    9,315.14x = 13,973.95 × 3,391.25
  4. Step 4: Simplify right side
    9,315.14x = 47,389,170.91
  5. Step 5: Solve for x
    x = 47,389,170.91/9,315.14
  6. Step 6: Final answer
    x = 5,087.33

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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.