Home / 12,822.48-19,183.11-9,711.45

Finding the Fourth Proportional to 12,822.48, 19,183.11 and 9,711.45

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Solution

The fourth proportional to 12,822.48, 19,183.11 and 9,711.45 is: 14,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822.48 : 19,183.11 = 9,711.45 : x
  2. Step 2: Convert to fraction form
    12,822.48/19,183.11 = 9,711.45/x
  3. Step 3: Cross multiply
    12,822.48x = 19,183.11 × 9,711.45
  4. Step 4: Simplify right side
    12,822.48x = 186,295,813.61
  5. Step 5: Solve for x
    x = 186,295,813.61/12,822.48
  6. Step 6: Final answer
    x = 14,528.84

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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.