Home / 13,172.42-18,195.69-10,538.66

Finding the Fourth Proportional to 13,172.42, 18,195.69 and 10,538.66

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Solution

The fourth proportional to 13,172.42, 18,195.69 and 10,538.66 is: 14,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.42 : 18,195.69 = 10,538.66 : x
  2. Step 2: Convert to fraction form
    13,172.42/18,195.69 = 10,538.66/x
  3. Step 3: Cross multiply
    13,172.42x = 18,195.69 × 10,538.66
  4. Step 4: Simplify right side
    13,172.42x = 191,758,190.38
  5. Step 5: Solve for x
    x = 191,758,190.38/13,172.42
  6. Step 6: Final answer
    x = 14,557.55

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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.