Home / 8,192.52-12,289.68-2,928.76

Finding the Fourth Proportional to 8,192.52, 12,289.68 and 2,928.76

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Solution

The fourth proportional to 8,192.52, 12,289.68 and 2,928.76 is: 4,393.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,192.52 : 12,289.68 = 2,928.76 : x
  2. Step 2: Convert to fraction form
    8,192.52/12,289.68 = 2,928.76/x
  3. Step 3: Cross multiply
    8,192.52x = 12,289.68 × 2,928.76
  4. Step 4: Simplify right side
    8,192.52x = 35,993,492.47
  5. Step 5: Solve for x
    x = 35,993,492.47/8,192.52
  6. Step 6: Final answer
    x = 4,393.46

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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.