Home / 13,132.08-19,659.12-7,922.16

Finding the Fourth Proportional to 13,132.08, 19,659.12 and 7,922.16

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Solution

The fourth proportional to 13,132.08, 19,659.12 and 7,922.16 is: 11,859.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.08 : 19,659.12 = 7,922.16 : x
  2. Step 2: Convert to fraction form
    13,132.08/19,659.12 = 7,922.16/x
  3. Step 3: Cross multiply
    13,132.08x = 19,659.12 × 7,922.16
  4. Step 4: Simplify right side
    13,132.08x = 155,742,694.10
  5. Step 5: Solve for x
    x = 155,742,694.10/13,132.08
  6. Step 6: Final answer
    x = 11,859.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.