Home / 13,099.73-18,074.97-12,649.70

Finding the Fourth Proportional to 13,099.73, 18,074.97 and 12,649.70

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Solution

The fourth proportional to 13,099.73, 18,074.97 and 12,649.70 is: 17,454.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.73 : 18,074.97 = 12,649.70 : x
  2. Step 2: Convert to fraction form
    13,099.73/18,074.97 = 12,649.70/x
  3. Step 3: Cross multiply
    13,099.73x = 18,074.97 × 12,649.70
  4. Step 4: Simplify right side
    13,099.73x = 228,642,993.20
  5. Step 5: Solve for x
    x = 228,642,993.20/13,099.73
  6. Step 6: Final answer
    x = 17,454.03

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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.