Home / 13,172.62-18,177.95-7,204.22

Finding the Fourth Proportional to 13,172.62, 18,177.95 and 7,204.22

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Solution

The fourth proportional to 13,172.62, 18,177.95 and 7,204.22 is: 9,941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.62 : 18,177.95 = 7,204.22 : x
  2. Step 2: Convert to fraction form
    13,172.62/18,177.95 = 7,204.22/x
  3. Step 3: Cross multiply
    13,172.62x = 18,177.95 × 7,204.22
  4. Step 4: Simplify right side
    13,172.62x = 130,957,914.93
  5. Step 5: Solve for x
    x = 130,957,914.93/13,172.62
  6. Step 6: Final answer
    x = 9,941.68

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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.