Home / 12,880.52-19,320.73-8,496.90

Finding the Fourth Proportional to 12,880.52, 19,320.73 and 8,496.90

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Solution

The fourth proportional to 12,880.52, 19,320.73 and 8,496.90 is: 12,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.52 : 19,320.73 = 8,496.90 : x
  2. Step 2: Convert to fraction form
    12,880.52/19,320.73 = 8,496.90/x
  3. Step 3: Cross multiply
    12,880.52x = 19,320.73 × 8,496.90
  4. Step 4: Simplify right side
    12,880.52x = 164,166,289.49
  5. Step 5: Solve for x
    x = 164,166,289.49/12,880.52
  6. Step 6: Final answer
    x = 12,745.32

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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.