Home / 9,315.90-13,968.09-3,160.38

Finding the Fourth Proportional to 9,315.90, 13,968.09 and 3,160.38

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Solution

The fourth proportional to 9,315.90, 13,968.09 and 3,160.38 is: 4,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.90 : 13,968.09 = 3,160.38 : x
  2. Step 2: Convert to fraction form
    9,315.90/13,968.09 = 3,160.38/x
  3. Step 3: Cross multiply
    9,315.90x = 13,968.09 × 3,160.38
  4. Step 4: Simplify right side
    9,315.90x = 44,144,472.27
  5. Step 5: Solve for x
    x = 44,144,472.27/9,315.90
  6. Step 6: Final answer
    x = 4,738.62

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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.