Home / 13,619.13-18,794.34-7,957.77

Finding the Fourth Proportional to 13,619.13, 18,794.34 and 7,957.77

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Solution

The fourth proportional to 13,619.13, 18,794.34 and 7,957.77 is: 10,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.13 : 18,794.34 = 7,957.77 : x
  2. Step 2: Convert to fraction form
    13,619.13/18,794.34 = 7,957.77/x
  3. Step 3: Cross multiply
    13,619.13x = 18,794.34 × 7,957.77
  4. Step 4: Simplify right side
    13,619.13x = 149,561,035.02
  5. Step 5: Solve for x
    x = 149,561,035.02/13,619.13
  6. Step 6: Final answer
    x = 10,981.69

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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.