Home / 13,168.22-18,172.01-7,199.82

Finding the Fourth Proportional to 13,168.22, 18,172.01 and 7,199.82

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Solution

The fourth proportional to 13,168.22, 18,172.01 and 7,199.82 is: 9,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.22 : 18,172.01 = 7,199.82 : x
  2. Step 2: Convert to fraction form
    13,168.22/18,172.01 = 7,199.82/x
  3. Step 3: Cross multiply
    13,168.22x = 18,172.01 × 7,199.82
  4. Step 4: Simplify right side
    13,168.22x = 130,835,219.04
  5. Step 5: Solve for x
    x = 130,835,219.04/13,168.22
  6. Step 6: Final answer
    x = 9,935.68

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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.