Home / 12,800.48-19,203.28-5,404.96

Finding the Fourth Proportional to 12,800.48, 19,203.28 and 5,404.96

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Solution

The fourth proportional to 12,800.48, 19,203.28 and 5,404.96 is: 8,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.48 : 19,203.28 = 5,404.96 : x
  2. Step 2: Convert to fraction form
    12,800.48/19,203.28 = 5,404.96/x
  3. Step 3: Cross multiply
    12,800.48x = 19,203.28 × 5,404.96
  4. Step 4: Simplify right side
    12,800.48x = 103,792,960.27
  5. Step 5: Solve for x
    x = 103,792,960.27/12,800.48
  6. Step 6: Final answer
    x = 8,108.52

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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.