Home / 13,305.65-18,369.21-9,717.04

Finding the Fourth Proportional to 13,305.65, 18,369.21 and 9,717.04

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Solution

The fourth proportional to 13,305.65, 18,369.21 and 9,717.04 is: 13,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.65 : 18,369.21 = 9,717.04 : x
  2. Step 2: Convert to fraction form
    13,305.65/18,369.21 = 9,717.04/x
  3. Step 3: Cross multiply
    13,305.65x = 18,369.21 × 9,717.04
  4. Step 4: Simplify right side
    13,305.65x = 178,494,274.09
  5. Step 5: Solve for x
    x = 178,494,274.09/13,305.65
  6. Step 6: Final answer
    x = 13,414.92

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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.