Home / 13,168.26-18,172.21-7,199.94

Finding the Fourth Proportional to 13,168.26, 18,172.21 and 7,199.94

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Solution

The fourth proportional to 13,168.26, 18,172.21 and 7,199.94 is: 9,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.26 : 18,172.21 = 7,199.94 : x
  2. Step 2: Convert to fraction form
    13,168.26/18,172.21 = 7,199.94/x
  3. Step 3: Cross multiply
    13,168.26x = 18,172.21 × 7,199.94
  4. Step 4: Simplify right side
    13,168.26x = 130,838,821.67
  5. Step 5: Solve for x
    x = 130,838,821.67/13,168.26
  6. Step 6: Final answer
    x = 9,935.92

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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.