Home / 9,089.65-13,638.66-4,160.80

Finding the Fourth Proportional to 9,089.65, 13,638.66 and 4,160.80

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Solution

The fourth proportional to 9,089.65, 13,638.66 and 4,160.80 is: 6,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.65 : 13,638.66 = 4,160.80 : x
  2. Step 2: Convert to fraction form
    9,089.65/13,638.66 = 4,160.80/x
  3. Step 3: Cross multiply
    9,089.65x = 13,638.66 × 4,160.80
  4. Step 4: Simplify right side
    9,089.65x = 56,747,736.53
  5. Step 5: Solve for x
    x = 56,747,736.53/9,089.65
  6. Step 6: Final answer
    x = 6,243.12

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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.