Home / 13,074.50-18,042.81-7,486.58

Finding the Fourth Proportional to 13,074.50, 18,042.81 and 7,486.58

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Solution

The fourth proportional to 13,074.50, 18,042.81 and 7,486.58 is: 10,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.50 : 18,042.81 = 7,486.58 : x
  2. Step 2: Convert to fraction form
    13,074.50/18,042.81 = 7,486.58/x
  3. Step 3: Cross multiply
    13,074.50x = 18,042.81 × 7,486.58
  4. Step 4: Simplify right side
    13,074.50x = 135,078,940.49
  5. Step 5: Solve for x
    x = 135,078,940.49/13,074.50
  6. Step 6: Final answer
    x = 10,331.48

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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.