Home / 14,813.40-22,220.10-12,480.60

Finding the Fourth Proportional to 14,813.40, 22,220.10 and 12,480.60

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Solution

The fourth proportional to 14,813.40, 22,220.10 and 12,480.60 is: 18,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,813.40 : 22,220.10 = 12,480.60 : x
  2. Step 2: Convert to fraction form
    14,813.40/22,220.10 = 12,480.60/x
  3. Step 3: Cross multiply
    14,813.40x = 22,220.10 × 12,480.60
  4. Step 4: Simplify right side
    14,813.40x = 277,320,180.06
  5. Step 5: Solve for x
    x = 277,320,180.06/14,813.40
  6. Step 6: Final answer
    x = 18,720.90

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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.