Home / 12,813.45-19,220.10-5,966.19

Finding the Fourth Proportional to 12,813.45, 19,220.10 and 5,966.19

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Solution

The fourth proportional to 12,813.45, 19,220.10 and 5,966.19 is: 8,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.45 : 19,220.10 = 5,966.19 : x
  2. Step 2: Convert to fraction form
    12,813.45/19,220.10 = 5,966.19/x
  3. Step 3: Cross multiply
    12,813.45x = 19,220.10 × 5,966.19
  4. Step 4: Simplify right side
    12,813.45x = 114,670,768.42
  5. Step 5: Solve for x
    x = 114,670,768.42/12,813.45
  6. Step 6: Final answer
    x = 8,949.25

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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.