Home / 12,551.89-18,816.31-4,338.13

Finding the Fourth Proportional to 12,551.89, 18,816.31 and 4,338.13

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Solution

The fourth proportional to 12,551.89, 18,816.31 and 4,338.13 is: 6,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.89 : 18,816.31 = 4,338.13 : x
  2. Step 2: Convert to fraction form
    12,551.89/18,816.31 = 4,338.13/x
  3. Step 3: Cross multiply
    12,551.89x = 18,816.31 × 4,338.13
  4. Step 4: Simplify right side
    12,551.89x = 81,627,493.97
  5. Step 5: Solve for x
    x = 81,627,493.97/12,551.89
  6. Step 6: Final answer
    x = 6,503.21

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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.