Home / 13,735.69-18,949.89-8,961.25

Finding the Fourth Proportional to 13,735.69, 18,949.89 and 8,961.25

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Solution

The fourth proportional to 13,735.69, 18,949.89 and 8,961.25 is: 12,363.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.69 : 18,949.89 = 8,961.25 : x
  2. Step 2: Convert to fraction form
    13,735.69/18,949.89 = 8,961.25/x
  3. Step 3: Cross multiply
    13,735.69x = 18,949.89 × 8,961.25
  4. Step 4: Simplify right side
    13,735.69x = 169,814,701.76
  5. Step 5: Solve for x
    x = 169,814,701.76/13,735.69
  6. Step 6: Final answer
    x = 12,363.03

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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.