Home / 12,551.79-18,822.89-4,229.57

Finding the Fourth Proportional to 12,551.79, 18,822.89 and 4,229.57

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Solution

The fourth proportional to 12,551.79, 18,822.89 and 4,229.57 is: 6,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.79 : 18,822.89 = 4,229.57 : x
  2. Step 2: Convert to fraction form
    12,551.79/18,822.89 = 4,229.57/x
  3. Step 3: Cross multiply
    12,551.79x = 18,822.89 × 4,229.57
  4. Step 4: Simplify right side
    12,551.79x = 79,612,788.49
  5. Step 5: Solve for x
    x = 79,612,788.49/12,551.79
  6. Step 6: Final answer
    x = 6,342.74

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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.