Home / 13,212.84-19,821.31-4,447.07

Finding the Fourth Proportional to 13,212.84, 19,821.31 and 4,447.07

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Solution

The fourth proportional to 13,212.84, 19,821.31 and 4,447.07 is: 6,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.84 : 19,821.31 = 4,447.07 : x
  2. Step 2: Convert to fraction form
    13,212.84/19,821.31 = 4,447.07/x
  3. Step 3: Cross multiply
    13,212.84x = 19,821.31 × 4,447.07
  4. Step 4: Simplify right side
    13,212.84x = 88,146,753.06
  5. Step 5: Solve for x
    x = 88,146,753.06/13,212.84
  6. Step 6: Final answer
    x = 6,671.29

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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.