Home / 12,223.50-16,863.21-9,385.98

Finding the Fourth Proportional to 12,223.50, 16,863.21 and 9,385.98

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Solution

The fourth proportional to 12,223.50, 16,863.21 and 9,385.98 is: 12,948.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.50 : 16,863.21 = 9,385.98 : x
  2. Step 2: Convert to fraction form
    12,223.50/16,863.21 = 9,385.98/x
  3. Step 3: Cross multiply
    12,223.50x = 16,863.21 × 9,385.98
  4. Step 4: Simplify right side
    12,223.50x = 158,277,751.80
  5. Step 5: Solve for x
    x = 158,277,751.80/12,223.50
  6. Step 6: Final answer
    x = 12,948.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.