Home / 12,826.89-19,220.49-8,650.53

Finding the Fourth Proportional to 12,826.89, 19,220.49 and 8,650.53

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Solution

The fourth proportional to 12,826.89, 19,220.49 and 8,650.53 is: 12,962.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.89 : 19,220.49 = 8,650.53 : x
  2. Step 2: Convert to fraction form
    12,826.89/19,220.49 = 8,650.53/x
  3. Step 3: Cross multiply
    12,826.89x = 19,220.49 × 8,650.53
  4. Step 4: Simplify right side
    12,826.89x = 166,267,425.36
  5. Step 5: Solve for x
    x = 166,267,425.36/12,826.89
  6. Step 6: Final answer
    x = 12,962.41

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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.