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Finding the Fourth Proportional to 13,436, 18,542.02 and 7,386.16

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Solution

The fourth proportional to 13,436, 18,542.02 and 7,386.16 is: 10,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436 : 18,542.02 = 7,386.16 : x
  2. Step 2: Convert to fraction form
    13,436/18,542.02 = 7,386.16/x
  3. Step 3: Cross multiply
    13,436x = 18,542.02 × 7,386.16
  4. Step 4: Simplify right side
    13,436x = 136,954,326.44
  5. Step 5: Solve for x
    x = 136,954,326.44/13,436
  6. Step 6: Final answer
    x = 10,193.09

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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.