Home / 13,072.14-18,039.17-7,103.66

Finding the Fourth Proportional to 13,072.14, 18,039.17 and 7,103.66

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Solution

The fourth proportional to 13,072.14, 18,039.17 and 7,103.66 is: 9,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.14 : 18,039.17 = 7,103.66 : x
  2. Step 2: Convert to fraction form
    13,072.14/18,039.17 = 7,103.66/x
  3. Step 3: Cross multiply
    13,072.14x = 18,039.17 × 7,103.66
  4. Step 4: Simplify right side
    13,072.14x = 128,144,057.93
  5. Step 5: Solve for x
    x = 128,144,057.93/13,072.14
  6. Step 6: Final answer
    x = 9,802.84

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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.