Home / 13,074.24-18,042.60-7,105.92

Finding the Fourth Proportional to 13,074.24, 18,042.60 and 7,105.92

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Solution

The fourth proportional to 13,074.24, 18,042.60 and 7,105.92 is: 9,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.24 : 18,042.60 = 7,105.92 : x
  2. Step 2: Convert to fraction form
    13,074.24/18,042.60 = 7,105.92/x
  3. Step 3: Cross multiply
    13,074.24x = 18,042.60 × 7,105.92
  4. Step 4: Simplify right side
    13,074.24x = 128,209,272.19
  5. Step 5: Solve for x
    x = 128,209,272.19/13,074.24
  6. Step 6: Final answer
    x = 9,806.25

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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.