Home / 13,078.03-18,048.04-7,110.11

Finding the Fourth Proportional to 13,078.03, 18,048.04 and 7,110.11

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Solution

The fourth proportional to 13,078.03, 18,048.04 and 7,110.11 is: 9,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.03 : 18,048.04 = 7,110.11 : x
  2. Step 2: Convert to fraction form
    13,078.03/18,048.04 = 7,110.11/x
  3. Step 3: Cross multiply
    13,078.03x = 18,048.04 × 7,110.11
  4. Step 4: Simplify right side
    13,078.03x = 128,323,469.01
  5. Step 5: Solve for x
    x = 128,323,469.01/13,078.03
  6. Step 6: Final answer
    x = 9,812.14

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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.