Home / 13,078.70-18,048.57-7,110.33

Finding the Fourth Proportional to 13,078.70, 18,048.57 and 7,110.33

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Solution

The fourth proportional to 13,078.70, 18,048.57 and 7,110.33 is: 9,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.70 : 18,048.57 = 7,110.33 : x
  2. Step 2: Convert to fraction form
    13,078.70/18,048.57 = 7,110.33/x
  3. Step 3: Cross multiply
    13,078.70x = 18,048.57 × 7,110.33
  4. Step 4: Simplify right side
    13,078.70x = 128,331,288.73
  5. Step 5: Solve for x
    x = 128,331,288.73/13,078.70
  6. Step 6: Final answer
    x = 9,812.24

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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.