Home / 12,810.47-19,202.56-4,910.85

Finding the Fourth Proportional to 12,810.47, 19,202.56 and 4,910.85

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Solution

The fourth proportional to 12,810.47, 19,202.56 and 4,910.85 is: 7,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.47 : 19,202.56 = 4,910.85 : x
  2. Step 2: Convert to fraction form
    12,810.47/19,202.56 = 4,910.85/x
  3. Step 3: Cross multiply
    12,810.47x = 19,202.56 × 4,910.85
  4. Step 4: Simplify right side
    12,810.47x = 94,300,879.50
  5. Step 5: Solve for x
    x = 94,300,879.50/12,810.47
  6. Step 6: Final answer
    x = 7,361.24

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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.