Home / 9,120.22-13,680.32-7,043.24

Finding the Fourth Proportional to 9,120.22, 13,680.32 and 7,043.24

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Solution

The fourth proportional to 9,120.22, 13,680.32 and 7,043.24 is: 10,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.22 : 13,680.32 = 7,043.24 : x
  2. Step 2: Convert to fraction form
    9,120.22/13,680.32 = 7,043.24/x
  3. Step 3: Cross multiply
    9,120.22x = 13,680.32 × 7,043.24
  4. Step 4: Simplify right side
    9,120.22x = 96,353,777.04
  5. Step 5: Solve for x
    x = 96,353,777.04/9,120.22
  6. Step 6: Final answer
    x = 10,564.85

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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.