Home / 13,074.70-18,042.64-7,484.62

Finding the Fourth Proportional to 13,074.70, 18,042.64 and 7,484.62

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Solution

The fourth proportional to 13,074.70, 18,042.64 and 7,484.62 is: 10,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.70 : 18,042.64 = 7,484.62 : x
  2. Step 2: Convert to fraction form
    13,074.70/18,042.64 = 7,484.62/x
  3. Step 3: Cross multiply
    13,074.70x = 18,042.64 × 7,484.62
  4. Step 4: Simplify right side
    13,074.70x = 135,042,195.27
  5. Step 5: Solve for x
    x = 135,042,195.27/13,074.70
  6. Step 6: Final answer
    x = 10,328.52

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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.